131697902 has 16 divisors (see below), whose sum is σ = 229470432. Its totient is φ = 55516320.

The previous prime is 131697893. The next prime is 131697983. The reversal of 131697902 is 209796131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76253 + ... + 77960.

It is an arithmetic number, because the mean of its divisors is an integer number (14341902).

Almost surely, 2^131697902 is an apocalyptic number.

131697902 is a deficient number, since it is larger than the sum of its proper divisors (97772530).

131697902 is a wasteful number, since it uses less digits than its factorization.

131697902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154283.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 131697902 is about 11475.9706343298. The cubic root of 131697902 is about 508.7756121663.

The spelling of 131697902 in words is "one hundred thirty-one million, six hundred ninety-seven thousand, nine hundred two".