131366642 has 16 divisors (see below), whose sum is σ = 215151552. Its totient is φ = 59659920.

The previous prime is 131366629. The next prime is 131366647. The reversal of 131366642 is 246663131.

It is a junction number, because it is equal to n+sod(n) for n = 131366599 and 131366608.

It is not an unprimeable number, because it can be changed into a prime (131366647) 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, 35483 + ... + 39009.

It is an arithmetic number, because the mean of its divisors is an integer number (13446972).

Almost surely, 2^131366642 is an apocalyptic number.

131366642 is a deficient number, since it is larger than the sum of its proper divisors (83784910).

131366642 is a wasteful number, since it uses less digits than its factorization.

131366642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5233.

The product of its digits is 15552, while the sum is 32.

The square root of 131366642 is about 11461.5287811007. The cubic root of 131366642 is about 508.3486792345.

The spelling of 131366642 in words is "one hundred thirty-one million, three hundred sixty-six thousand, six hundred forty-two".