146531593557 has 12 divisors (see below), whose sum is σ = 213752358924. Its totient is φ = 96720523200.

The previous prime is 146531593547. The next prime is 146531593567. The reversal of 146531593557 is 755395135641.

It is a happy number.

146531593557 is a `hidden beast` number, since 1 + 4 + 6 + 5 + 31 + 59 + 3 + 557 = 666.

It is an interprime number because it is at equal distance from previous prime (146531593547) and next prime (146531593567).

It can be written as a sum of positive squares in 2 ways, for example, as 140541762321 + 5989831236 = 374889^2 + 77394^2 .

It is not a de Polignac number, because 146531593557 - 2⁴ = 146531593541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146531593547) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80599528 + ... + 80601345.

It is an arithmetic number, because the mean of its divisors is an integer number (17812696577).

Almost surely, 2^146531593557 is an apocalyptic number.

It is an amenable number.

146531593557 is a deficient number, since it is larger than the sum of its proper divisors (67220765367).

146531593557 is a wasteful number, since it uses less digits than its factorization.

146531593557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161200980 (or 161200977 counting only the distinct ones).

The product of its digits is 8505000, while the sum is 54.

The spelling of 146531593557 in words is "one hundred forty-six billion, five hundred thirty-one million, five hundred ninety-three thousand, five hundred fifty-seven".