131465602 has 4 divisors (see below), whose sum is σ = 197198406. Its totient is φ = 65732800.

The previous prime is 131465563. The next prime is 131465603. The reversal of 131465602 is 206564131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 118570321 + 12895281 = 10889^2 + 3591^2 .

It is not an unprimeable number, because it can be changed into a prime (131465603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32866399 + ... + 32866402.

Almost surely, 2^131465602 is an apocalyptic number.

131465602 is a deficient number, since it is larger than the sum of its proper divisors (65732804).

131465602 is an equidigital number, since it uses as much as digits as its factorization.

131465602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65732803.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 131465602 is about 11465.8450190119. The cubic root of 131465602 is about 508.4762954942.

The spelling of 131465602 in words is "one hundred thirty-one million, four hundred sixty-five thousand, six hundred two".