131097254 has 16 divisors (see below), whose sum is σ = 202423536. Its totient is φ = 63638400.

The previous prime is 131097227. The next prime is 131097257. The reversal of 131097254 is 452790131.

It is a self number, because there is not a number n which added to its sum of digits gives 131097254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131097257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13514 + ... + 21090.

It is an arithmetic number, because the mean of its divisors is an integer number (12651471).

Almost surely, 2^131097254 is an apocalyptic number.

131097254 is a deficient number, since it is larger than the sum of its proper divisors (71326282).

131097254 is a wasteful number, since it uses less digits than its factorization.

131097254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7831.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 131097254 is about 11449.7709147389. The cubic root of 131097254 is about 508.0009584168. Note that the first 3 decimals are identical.

The spelling of 131097254 in words is "one hundred thirty-one million, ninety-seven thousand, two hundred fifty-four".