131660362 has 4 divisors (see below), whose sum is σ = 197490546. Its totient is φ = 65830180.

The previous prime is 131660351. The next prime is 131660363. The reversal of 131660362 is 263066131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 263066131 = 43 ⋅6117817.

It can be written as a sum of positive squares in only one way, i.e., 69739201 + 61921161 = 8351^2 + 7869^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 131660362.

It is not an unprimeable number, because it can be changed into a prime (131660363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32915089 + ... + 32915092.

Almost surely, 2^131660362 is an apocalyptic number.

131660362 is a deficient number, since it is larger than the sum of its proper divisors (65830184).

131660362 is an equidigital number, since it uses as much as digits as its factorization.

131660362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65830183.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 131660362 is about 11474.3349262604. The cubic root of 131660362 is about 508.7272660368.

The spelling of 131660362 in words is "one hundred thirty-one million, six hundred sixty thousand, three hundred sixty-two".