131259642 has 32 divisors (see below), whose sum is σ = 273106944. Its totient is φ = 42010800.

The previous prime is 131259637. The next prime is 131259659. The reversal of 131259642 is 246952131.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21673 + ... + 27059.

It is an arithmetic number, because the mean of its divisors is an integer number (8534592).

Almost surely, 2^131259642 is an apocalyptic number.

131259642 is an abundant number, since it is smaller than the sum of its proper divisors (141847302).

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

131259642 is a wasteful number, since it uses less digits than its factorization.

131259642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5554.

The product of its digits is 12960, while the sum is 33.

The square root of 131259642 is about 11456.8600410409. The cubic root of 131259642 is about 508.2106226661.

The spelling of 131259642 in words is "one hundred thirty-one million, two hundred fifty-nine thousand, six hundred forty-two".