131082442 has 4 divisors (see below), whose sum is σ = 196623666. Its totient is φ = 65541220.

The previous prime is 131082433. The next prime is 131082443. The reversal of 131082442 is 244280131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 244280131 = 19 ⋅12856849.

It can be written as a sum of positive squares in only one way, i.e., 115154361 + 15928081 = 10731^2 + 3991^2 .

It is not an unprimeable number, because it can be changed into a prime (131082443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32770609 + ... + 32770612.

Almost surely, 2^131082442 is an apocalyptic number.

131082442 is a deficient number, since it is larger than the sum of its proper divisors (65541224).

131082442 is an equidigital number, since it uses as much as digits as its factorization.

131082442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65541223.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 131082442 is about 11449.1240712991. The cubic root of 131082442 is about 507.9818255634.

The spelling of 131082442 in words is "one hundred thirty-one million, eighty-two thousand, four hundred forty-two".