131153449 has 12 divisors (see below), whose sum is σ = 154082628. Its totient is φ = 111300000.

The previous prime is 131153443. The next prime is 131153459. The reversal of 131153449 is 944351131.

It can be written as a sum of positive squares in 2 ways, for example, as 92775424 + 38378025 = 9632^2 + 6195^2 .

It is not a de Polignac number, because 131153449 - 2³ = 131153441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131153449.

It is not an unprimeable number, because it can be changed into a prime (131153441) 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, 8302 + ... + 18199.

It is an arithmetic number, because the mean of its divisors is an integer number (12840219).

Almost surely, 2^131153449 is an apocalyptic number.

It is an amenable number.

131153449 is a deficient number, since it is larger than the sum of its proper divisors (22929179).

131153449 is a wasteful number, since it uses less digits than its factorization.

131153449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26616 (or 26609 counting only the distinct ones).

The product of its digits is 6480, while the sum is 31.

The square root of 131153449 is about 11452.2246310488. The cubic root of 131153449 is about 508.0735331276.

The spelling of 131153449 in words is "one hundred thirty-one million, one hundred fifty-three thousand, four hundred forty-nine".