131537748 has 24 divisors (see below), whose sum is σ = 307355328. Its totient is φ = 43783936.

The previous prime is 131537719. The next prime is 131537753. The reversal of 131537748 is 847735131.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1540 + ... + 16292.

It is an arithmetic number, because the mean of its divisors is an integer number (12806472).

Almost surely, 2^131537748 is an apocalyptic number.

It is an amenable number.

131537748 is an abundant number, since it is smaller than the sum of its proper divisors (175817580).

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

131537748 is a wasteful number, since it uses less digits than its factorization.

131537748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15503 (or 15501 counting only the distinct ones).

The product of its digits is 70560, while the sum is 39.

The square root of 131537748 is about 11468.9907140951. The cubic root of 131537748 is about 508.5692927541.

The spelling of 131537748 in words is "one hundred thirty-one million, five hundred thirty-seven thousand, seven hundred forty-eight".