145131554125503 has 32 divisors (see below), whose sum is σ = 235016864697600. Its totient is φ = 87785711042400.

The previous prime is 145131554125447. The next prime is 145131554125549. The reversal of 145131554125503 is 305521455131541.

145131554125503 is a `hidden beast` number, since 1 + 4 + 5 + 1 + 3 + 1 + 55 + 41 + 2 + 550 + 3 = 666.

It is not a de Polignac number, because 145131554125503 - 2¹⁷ = 145131553994431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145131554145503) 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, 479866933 + ... + 480169278.

It is an arithmetic number, because the mean of its divisors is an integer number (7344277021800).

Almost surely, 2^{145131554125503} is an apocalyptic number.

145131554125503 is a deficient number, since it is larger than the sum of its proper divisors (89885310572097).

145131554125503 is a wasteful number, since it uses less digits than its factorization.

145131554125503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960036740 (or 960036734 counting only the distinct ones).

The product of its (nonzero) digits is 900000, while the sum is 45.

The spelling of 145131554125503 in words is "one hundred forty-five trillion, one hundred thirty-one billion, five hundred fifty-four million, one hundred twenty-five thousand, five hundred three".