145012155012 has 96 divisors (see below), whose sum is σ = 389752796160. Its totient is φ = 46577099520.

The previous prime is 145012154983. The next prime is 145012155017. The reversal of 145012155012 is 210551210541.

It is a happy number.

145012155012 is a `hidden beast` number, since 1 + 4 + 501 + 2 + 155 + 0 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (145012155017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 687138 + ... + 873030.

It is an arithmetic number, because the mean of its divisors is an integer number (4059924960).

Almost surely, 2^145012155012 is an apocalyptic number.

145012155012 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 145012155012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194876398080).

145012155012 is an abundant number, since it is smaller than the sum of its proper divisors (244740641148).

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

145012155012 is a wasteful number, since it uses less digits than its factorization.

145012155012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186170 (or 186162 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

Adding to 145012155012 its reverse (210551210541), we get a palindrome (355563365553).

The spelling of 145012155012 in words is "one hundred forty-five billion, twelve million, one hundred fifty-five thousand, twelve".