131454401 has 4 divisors (see below), whose sum is σ = 141566292. Its totient is φ = 121342512.

The previous prime is 131454391. The next prime is 131454403. The reversal of 131454401 is 104454131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104454131 = 59 ⋅1770409.

It can be written as a sum of positive squares in 2 ways, for example, as 35414401 + 96040000 = 5951^2 + 9800^2 .

It is a cyclic number.

It is not a de Polignac number, because 131454401 - 2²⁶ = 64345537 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131454403) 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, 5055926 + ... + 5055951.

It is an arithmetic number, because the mean of its divisors is an integer number (35391573).

Almost surely, 2^131454401 is an apocalyptic number.

It is an amenable number.

131454401 is a deficient number, since it is larger than the sum of its proper divisors (10111891).

131454401 is a wasteful number, since it uses less digits than its factorization.

131454401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10111890.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 131454401 is about 11465.3565579096. The cubic root of 131454401 is about 508.4618541888.

The spelling of 131454401 in words is "one hundred thirty-one million, four hundred fifty-four thousand, four hundred one".