145505315142 has 32 divisors (see below), whose sum is σ = 352740159360. Its totient is φ = 44092519560.

The previous prime is 145505315129. The next prime is 145505315149. The reversal of 145505315142 is 241513505541.

145505315142 is a `hidden beast` number, since 1 + 4 + 5 + 505 + 3 + 1 + 5 + 142 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 145505315097 and 145505315106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145505315149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122478628 + ... + 122479815.

It is an arithmetic number, because the mean of its divisors is an integer number (11023129980).

Almost surely, 2^145505315142 is an apocalyptic number.

145505315142 is an abundant number, since it is smaller than the sum of its proper divisors (207234844218).

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

145505315142 is a wasteful number, since it uses less digits than its factorization.

145505315142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244958465 (or 244958459 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

The spelling of 145505315142 in words is "one hundred forty-five billion, five hundred five million, three hundred fifteen thousand, one hundred forty-two".