145115115372 has 72 divisors (see below), whose sum is σ = 372875420736. Its totient is φ = 47578167264.

The previous prime is 145115115361. The next prime is 145115115373. The reversal of 145115115372 is 273511511541.

145115115372 is a `hidden beast` number, since 1 + 4 + 5 + 115 + 1 + 1 + 537 + 2 = 666.

145115115372 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (145115115373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 571303 + ... + 785249.

It is an arithmetic number, because the mean of its divisors is an integer number (5178825288).

Almost surely, 2^145115115372 is an apocalyptic number.

145115115372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145115115372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186437710368).

145115115372 is an abundant number, since it is smaller than the sum of its proper divisors (227760305364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145115115372 is a wasteful number, since it uses less digits than its factorization.

145115115372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214267 (or 214262 counting only the distinct ones).

The product of its digits is 21000, while the sum is 36.

The spelling of 145115115372 in words is "one hundred forty-five billion, one hundred fifteen million, one hundred fifteen thousand, three hundred seventy-two".