131455121 has 8 divisors (see below), whose sum is σ = 150461760. Its totient is φ = 112505328.

The previous prime is 131455111. The next prime is 131455123. The reversal of 131455121 is 121554131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131455121 - 2¹⁰ = 131454097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131455123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9131 + ... + 18608.

It is an arithmetic number, because the mean of its divisors is an integer number (18807720).

Almost surely, 2^131455121 is an apocalyptic number.

It is an amenable number.

131455121 is a deficient number, since it is larger than the sum of its proper divisors (19006639).

131455121 is an equidigital number, since it uses as much as digits as its factorization.

131455121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28423.

The product of its digits is 600, while the sum is 23.

The square root of 131455121 is about 11465.3879568029. The cubic root of 131455121 is about 508.4627825002.

The spelling of 131455121 in words is "one hundred thirty-one million, four hundred fifty-five thousand, one hundred twenty-one".