131349638 has 16 divisors (see below), whose sum is σ = 226556160. Its totient is φ = 55946376.

The previous prime is 131349637. The next prime is 131349677. The reversal of 131349638 is 836943131.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131349637) 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, 26498 + ... + 31061.

It is an arithmetic number, because the mean of its divisors is an integer number (14159760).

Almost surely, 2^131349638 is an apocalyptic number.

131349638 is a deficient number, since it is larger than the sum of its proper divisors (95206522).

131349638 is a wasteful number, since it uses less digits than its factorization.

131349638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57731.

The product of its digits is 46656, while the sum is 38.

The square root of 131349638 is about 11460.7869712337. The cubic root of 131349638 is about 508.3267448637.

The spelling of 131349638 in words is "one hundred thirty-one million, three hundred forty-nine thousand, six hundred thirty-eight".