131455001 has 4 divisors (see below), whose sum is σ = 132292452. Its totient is φ = 130617552.

The previous prime is 131454991. The next prime is 131455003. The reversal of 131455001 is 100554131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 58369600 + 73085401 = 7640^2 + 8549^2 .

It is a cyclic number.

It is not a de Polignac number, because 131455001 - 2⁶ = 131454937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131455003) 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, 418490 + ... + 418803.

It is an arithmetic number, because the mean of its divisors is an integer number (33073113).

Almost surely, 2^131455001 is an apocalyptic number.

It is an amenable number.

131455001 is a deficient number, since it is larger than the sum of its proper divisors (837451).

131455001 is an equidigital number, since it uses as much as digits as its factorization.

131455001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837450.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 131455001 is about 11465.3827236599. The cubic root of 131455001 is about 508.4626277819.

The spelling of 131455001 in words is "one hundred thirty-one million, four hundred fifty-five thousand, one".