131415675169 has 9 divisors (see below), whose sum is σ = 132315353337. Its totient is φ = 130522080624.

The previous prime is 131415675163. The next prime is 131415675197. The reversal of 131415675169 is 961576514131.

The square root of 131415675169 is 362513.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 3045384225 + 128370290944 = 55185^2 + 358288^2 .

It is a de Polignac number, because none of the positive numbers 2^k-131415675169 is a prime.

It is a super-2 number, since 2×131415675169² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131415675163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 56913387 + ... + 56915695.

Almost surely, 2^131415675169 is an apocalyptic number.

131415675169 is the 362513-rd square number.

131415675169 is the 181257-th centered octagonal number.

It is an amenable number.

131415675169 is a deficient number, since it is larger than the sum of its proper divisors (899678168).

131415675169 is an frugal number, since it uses more digits than its factorization.

131415675169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4932 (or 2466 counting only the distinct ones).

The product of its digits is 680400, while the sum is 49.

Multiplying 131415675169 by its sum of digits (49), we get a square (6439368083281 = 2537591²).

The spelling of 131415675169 in words is "one hundred thirty-one billion, four hundred fifteen million, six hundred seventy-five thousand, one hundred sixty-nine".