453121901 has 2 divisors, whose sum is σ = 453121902. Its totient is φ = 453121900.

The previous prime is 453121841. The next prime is 453121931. The reversal of 453121901 is 109121354.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 439908676 + 13213225 = 20974^2 + 3635^2 .

It is a cyclic number.

It is not a de Polignac number, because 453121901 - 2²⁶ = 386013037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (453121931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226560950 + 226560951.

It is an arithmetic number, because the mean of its divisors is an integer number (226560951).

Almost surely, 2^453121901 is an apocalyptic number.

It is an amenable number.

453121901 is a deficient number, since it is larger than the sum of its proper divisors (1).

453121901 is an equidigital number, since it uses as much as digits as its factorization.

453121901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 453121901 is about 21286.6601654651. The cubic root of 453121901 is about 768.0774554088.

The spelling of 453121901 in words is "four hundred fifty-three million, one hundred twenty-one thousand, nine hundred one".