452912981 has 12 divisors (see below), whose sum is σ = 472764864. Its totient is φ = 433851600.

The previous prime is 452912953. The next prime is 452913001. The reversal of 452912981 is 189219254.

It is a de Polignac number, because none of the positive numbers 2^k-452912981 is a prime.

It is a super-2 number, since 2×452912981² = 410260336716612722, 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 (452912921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108116 + ... + 112226.

It is an arithmetic number, because the mean of its divisors is an integer number (39397072).

Almost surely, 2^452912981 is an apocalyptic number.

It is an amenable number.

452912981 is a deficient number, since it is larger than the sum of its proper divisors (19851883).

452912981 is a wasteful number, since it uses less digits than its factorization.

452912981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4300 (or 4271 counting only the distinct ones).

The product of its digits is 51840, while the sum is 41.

The square root of 452912981 is about 21281.7523009737. The cubic root of 452912981 is about 767.9593919546.

The spelling of 452912981 in words is "four hundred fifty-two million, nine hundred twelve thousand, nine hundred eighty-one".