131154669 has 12 divisors (see below), whose sum is σ = 189923292. Its totient is φ = 87216000.

The previous prime is 131154659. The next prime is 131154689. The reversal of 131154669 is 966451131.

It can be written as a sum of positive squares in 2 ways, for example, as 120165444 + 10989225 = 10962^2 + 3315^2 .

It is not a de Polignac number, because 131154669 - 2⁹ = 131154157 is a prime.

It is a super-2 number, since 2×131154669² = 34403094400999122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131154649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14562 + ... + 21779.

It is an arithmetic number, because the mean of its divisors is an integer number (15826941).

Almost surely, 2^131154669 is an apocalyptic number.

It is an amenable number.

131154669 is a deficient number, since it is larger than the sum of its proper divisors (58768623).

131154669 is a wasteful number, since it uses less digits than its factorization.

131154669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36748 (or 36745 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 131154669 is about 11452.2778956852. The cubic root of 131154669 is about 508.0751085031.

The spelling of 131154669 in words is "one hundred thirty-one million, one hundred fifty-four thousand, six hundred sixty-nine".