145431101504 has 28 divisors (see below), whose sum is σ = 310789062444. Its totient is φ = 67122046464.

The previous prime is 145431101447. The next prime is 145431101521. The reversal of 145431101504 is 405101134541.

It can be written as a sum of positive squares in 2 ways, for example, as 64593239104 + 80837862400 = 254152^2 + 284320^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87397667 + ... + 87399330.

It is an arithmetic number, because the mean of its divisors is an integer number (11099609373).

Almost surely, 2^145431101504 is an apocalyptic number.

It is an amenable number.

145431101504 is an abundant number, since it is smaller than the sum of its proper divisors (165357960940).

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

145431101504 is a wasteful number, since it uses less digits than its factorization.

145431101504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174797022 (or 174797012 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

The spelling of 145431101504 in words is "one hundred forty-five billion, four hundred thirty-one million, one hundred one thousand, five hundred four".