131426642 has 8 divisors (see below), whose sum is σ = 198463500. Its totient is φ = 65272144.

The previous prime is 131426563. The next prime is 131426653. The reversal of 131426642 is 246624131.

It can be written as a sum of positive squares in 2 ways, for example, as 127260961 + 4165681 = 11281^2 + 2041^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220217 + ... + 220812.

Almost surely, 2^131426642 is an apocalyptic number.

131426642 is a deficient number, since it is larger than the sum of its proper divisors (67036858).

131426642 is a wasteful number, since it uses less digits than its factorization.

131426642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441180.

The product of its digits is 6912, while the sum is 29.

The square root of 131426642 is about 11464.1459341723. The cubic root of 131426642 is about 508.4260613305.

The spelling of 131426642 in words is "one hundred thirty-one million, four hundred twenty-six thousand, six hundred forty-two".