131400563 has 4 divisors (see below), whose sum is σ = 150172080. Its totient is φ = 112629048.

The previous prime is 131400557. The next prime is 131400589. The reversal of 131400563 is 365004131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 365004131 = 139 ⋅2625929.

It is not a de Polignac number, because 131400563 - 2⁸ = 131400307 is a prime.

It is a super-2 number, since 2×131400563² = 34532215913433938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131400553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9385748 + ... + 9385761.

It is an arithmetic number, because the mean of its divisors is an integer number (37543020).

Almost surely, 2^131400563 is an apocalyptic number.

131400563 is a deficient number, since it is larger than the sum of its proper divisors (18771517).

131400563 is an equidigital number, since it uses as much as digits as its factorization.

131400563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18771516.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 131400563 is about 11463.0084620051. The cubic root of 131400563 is about 508.3924300967.

Adding to 131400563 its reverse (365004131), we get a palindrome (496404694).

The spelling of 131400563 in words is "one hundred thirty-one million, four hundred thousand, five hundred sixty-three".