131023455 has 16 divisors (see below), whose sum is σ = 211029504. Its totient is φ = 69415200.

The previous prime is 131023423. The next prime is 131023469. The reversal of 131023455 is 554320131.

It is not a de Polignac number, because 131023455 - 2⁵ = 131023423 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 26659 + ... + 31188.

It is an arithmetic number, because the mean of its divisors is an integer number (13189344).

Almost surely, 2^131023455 is an apocalyptic number.

131023455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131023455 is a deficient number, since it is larger than the sum of its proper divisors (80006049).

131023455 is a wasteful number, since it uses less digits than its factorization.

131023455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58006.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 131023455 is about 11446.5477328319. The cubic root of 131023455 is about 507.9056169850.

Adding to 131023455 its reverse (554320131), we get a palindrome (685343586).

The spelling of 131023455 in words is "one hundred thirty-one million, twenty-three thousand, four hundred fifty-five".