131100451 has 4 divisors (see below), whose sum is σ = 131421400. Its totient is φ = 130779504.

The previous prime is 131100433. The next prime is 131100521. The reversal of 131100451 is 154001131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 154001131 = 7993 ⋅19267.

It is a cyclic number.

It is not a de Polignac number, because 131100451 - 2¹⁹ = 130576163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131100401) 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, 159861 + ... + 160678.

It is an arithmetic number, because the mean of its divisors is an integer number (32855350).

Almost surely, 2^131100451 is an apocalyptic number.

131100451 is a deficient number, since it is larger than the sum of its proper divisors (320949).

131100451 is an equidigital number, since it uses as much as digits as its factorization.

131100451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320948.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 131100451 is about 11449.9105236679. The cubic root of 131100451 is about 508.0050878342.

Adding to 131100451 its reverse (154001131), we get a palindrome (285101582).

The spelling of 131100451 in words is "one hundred thirty-one million, one hundred thousand, four hundred fifty-one".