131314388 has 24 divisors (see below), whose sum is σ = 237699840. Its totient is φ = 63408960.

The previous prime is 131314387. The next prime is 131314399. The reversal of 131314388 is 883413131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131314387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90920 + ... + 92352.

It is an arithmetic number, because the mean of its divisors is an integer number (9904160).

Almost surely, 2^131314388 is an apocalyptic number.

It is an amenable number.

131314388 is a deficient number, since it is larger than the sum of its proper divisors (106385452).

131314388 is a wasteful number, since it uses less digits than its factorization.

131314388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2207 (or 2205 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 131314388 is about 11459.2490155333. The cubic root of 131314388 is about 508.2812679691.

The spelling of 131314388 in words is "one hundred thirty-one million, three hundred fourteen thousand, three hundred eighty-eight".