131628546 has 48 divisors (see below), whose sum is σ = 326708928. Its totient is φ = 37519200.

The previous prime is 131628487. The next prime is 131628559. The reversal of 131628546 is 645826131.

It is a happy number.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 131628546.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67201 + ... + 69131.

It is an arithmetic number, because the mean of its divisors is an integer number (6806436).

Almost surely, 2^131628546 is an apocalyptic number.

131628546 is an abundant number, since it is smaller than the sum of its proper divisors (195080382).

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

131628546 is a wasteful number, since it uses less digits than its factorization.

131628546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2487 (or 2484 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 131628546 is about 11472.9484440574. The cubic root of 131628546 is about 508.6862844019.

The spelling of 131628546 in words is "one hundred thirty-one million, six hundred twenty-eight thousand, five hundred forty-six".