145231104531 has 8 divisors (see below), whose sum is σ = 194444965264. Its totient is φ = 96418990080.

The previous prime is 145231104511. The next prime is 145231104541. The reversal of 145231104531 is 135401132541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145231104531 - 2⁹ = 145231104019 is a prime.

It is a super-2 number, since 2×145231104531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145231104511) 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, 100435726 + ... + 100437171.

It is an arithmetic number, because the mean of its divisors is an integer number (24305620658).

Almost surely, 2^145231104531 is an apocalyptic number.

145231104531 is a deficient number, since it is larger than the sum of its proper divisors (49213860733).

145231104531 is a wasteful number, since it uses less digits than its factorization.

145231104531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200873141.

The product of its (nonzero) digits is 7200, while the sum is 30.

The spelling of 145231104531 in words is "one hundred forty-five billion, two hundred thirty-one million, one hundred four thousand, five hundred thirty-one".