145931052 has 24 divisors (see below), whose sum is σ = 347751936. Its totient is φ = 47608528.

The previous prime is 145931033. The next prime is 145931059. The reversal of 145931052 is 250139541.

145931052 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (145931059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128808 + ... + 129935.

It is an arithmetic number, because the mean of its divisors is an integer number (14489664).

Almost surely, 2^145931052 is an apocalyptic number.

145931052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145931052 is an abundant number, since it is smaller than the sum of its proper divisors (201820884).

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

145931052 is a wasteful number, since it uses less digits than its factorization.

145931052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258797 (or 258795 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 145931052 is about 12080.1925481343. The cubic root of 145931052 is about 526.4808404576.

The spelling of 145931052 in words is "one hundred forty-five million, nine hundred thirty-one thousand, fifty-two".