455153981 has 4 divisors (see below), whose sum is σ = 461947392. Its totient is φ = 448360572.

The previous prime is 455153957. The next prime is 455154019. The reversal of 455153981 is 189351554.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 455153981 - 2²⁶ = 388045117 is a prime.

It is a super-2 number, since 2×455153981² = 414330292840296722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (455156981) 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, 3396605 + ... + 3396738.

It is an arithmetic number, because the mean of its divisors is an integer number (115486848).

Almost surely, 2^455153981 is an apocalyptic number.

It is an amenable number.

455153981 is a deficient number, since it is larger than the sum of its proper divisors (6793411).

455153981 is an equidigital number, since it uses as much as digits as its factorization.

455153981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6793410.

The product of its digits is 108000, while the sum is 41.

The square root of 455153981 is about 21334.3380726940. The cubic root of 455153981 is about 769.2239220562.

The spelling of 455153981 in words is "four hundred fifty-five million, one hundred fifty-three thousand, nine hundred eighty-one".