131376428 has 6 divisors (see below), whose sum is σ = 229908756. Its totient is φ = 65688212.

The previous prime is 131376389. The next prime is 131376433. The reversal of 131376428 is 824673131.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16422050 + ... + 16422057.

It is an arithmetic number, because the mean of its divisors is an integer number (38318126).

Almost surely, 2^131376428 is an apocalyptic number.

It is an amenable number.

131376428 is a deficient number, since it is larger than the sum of its proper divisors (98532328).

131376428 is a wasteful number, since it uses less digits than its factorization.

131376428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32844111 (or 32844109 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The square root of 131376428 is about 11461.9556795514. The cubic root of 131376428 is about 508.3613018623.

The spelling of 131376428 in words is "one hundred thirty-one million, three hundred seventy-six thousand, four hundred twenty-eight".