131201694 has 40 divisors (see below), whose sum is σ = 316608600. Its totient is φ = 40369104.

The previous prime is 131201689. The next prime is 131201711. The reversal of 131201694 is 496102131.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 29044 + ... + 33255.

It is an arithmetic number, because the mean of its divisors is an integer number (7915215).

Almost surely, 2^131201694 is an apocalyptic number.

131201694 is an abundant number, since it is smaller than the sum of its proper divisors (185406906).

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

131201694 is a wasteful number, since it uses less digits than its factorization.

131201694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62326 (or 62317 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 131201694 is about 11454.3307966900. The cubic root of 131201694 is about 508.1358240365.

The spelling of 131201694 in words is "one hundred thirty-one million, two hundred one thousand, six hundred ninety-four".