131698455 has 32 divisors (see below), whose sum is σ = 241365504. Its totient is φ = 60068736.

The previous prime is 131698453. The next prime is 131698459. The reversal of 131698455 is 554896131.

It is not a de Polignac number, because 131698455 - 2¹ = 131698453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131698453) 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 31 ways as a sum of consecutive naturals, for example, 56289 + ... + 58581.

It is an arithmetic number, because the mean of its divisors is an integer number (7542672).

Almost surely, 2^131698455 is an apocalyptic number.

131698455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131698455 is a deficient number, since it is larger than the sum of its proper divisors (109667049).

131698455 is a wasteful number, since it uses less digits than its factorization.

131698455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2855.

The product of its digits is 129600, while the sum is 42.

The square root of 131698455 is about 11475.9947281271. The cubic root of 131698455 is about 508.7763242823.

The spelling of 131698455 in words is "one hundred thirty-one million, six hundred ninety-eight thousand, four hundred fifty-five".