131601954 has 16 divisors (see below), whose sum is σ = 287131680. Its totient is φ = 39879360.

The previous prime is 131601917. The next prime is 131601989. The reversal of 131601954 is 459106131.

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, 996919 + ... + 997050.

It is an arithmetic number, because the mean of its divisors is an integer number (17945730).

Almost surely, 2^131601954 is an apocalyptic number.

131601954 is an abundant number, since it is smaller than the sum of its proper divisors (155529726).

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

131601954 is a wasteful number, since it uses less digits than its factorization.

131601954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1993985.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 131601954 is about 11471.7894855162. The cubic root of 131601954 is about 508.6520266437.

The spelling of 131601954 in words is "one hundred thirty-one million, six hundred one thousand, nine hundred fifty-four".