131337428 has 12 divisors (see below), whose sum is σ = 230002080. Its totient is φ = 65622552.

The previous prime is 131337407. The next prime is 131337449. The reversal of 131337428 is 824733131.

It is an interprime number because it is at equal distance from previous prime (131337407) and next prime (131337449).

It is a junction number, because it is equal to n+sod(n) for n = 131337394 and 131337403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4688 + ... + 16871.

It is an arithmetic number, because the mean of its divisors is an integer number (19166840).

Almost surely, 2^131337428 is an apocalyptic number.

It is an amenable number.

131337428 is a deficient number, since it is larger than the sum of its proper divisors (98664652).

131337428 is a wasteful number, since it uses less digits than its factorization.

131337428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23086 (or 23084 counting only the distinct ones).

The product of its digits is 12096, while the sum is 32.

The square root of 131337428 is about 11460.2542729208. The cubic root of 131337428 is about 508.3109933626.

The spelling of 131337428 in words is "one hundred thirty-one million, three hundred thirty-seven thousand, four hundred twenty-eight".