145520034312 has 32 divisors (see below), whose sum is σ = 364947739200. Its totient is φ = 48353657664.

The previous prime is 145520034277. The next prime is 145520034377. The reversal of 145520034312 is 213430025541.

It is a self number, because there is not a number n which added to its sum of digits gives 145520034312.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9556012 + ... + 9571227.

It is an arithmetic number, because the mean of its divisors is an integer number (11404616850).

Almost surely, 2^145520034312 is an apocalyptic number.

145520034312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145520034312 is an abundant number, since it is smaller than the sum of its proper divisors (219427704888).

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

145520034312 is a wasteful number, since it uses less digits than its factorization.

145520034312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19127565 (or 19127561 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 145520034312 its reverse (213430025541), we get a palindrome (358950059853).

The spelling of 145520034312 in words is "one hundred forty-five billion, five hundred twenty million, thirty-four thousand, three hundred twelve".