453029681 has 12 divisors (see below), whose sum is σ = 491471388. Its totient is φ = 417403584.

The previous prime is 453029659. The next prime is 453029683. The reversal of 453029681 is 186920354.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 195748081 + 257281600 = 13991^2 + 16040^2 .

It is a de Polignac number, because none of the positive numbers 2^k-453029681 is a prime.

It is a super-2 number, since 2×453029681² = 410471783733923522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (453029683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101411 + ... + 105783.

It is an arithmetic number, because the mean of its divisors is an integer number (40955949).

Almost surely, 2^453029681 is an apocalyptic number.

It is an amenable number.

453029681 is a deficient number, since it is larger than the sum of its proper divisors (38441707).

453029681 is a wasteful number, since it uses less digits than its factorization.

453029681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5012 (or 4999 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 453029681 is about 21284.4939098866. The cubic root of 453029681 is about 768.0253451425.

The spelling of 453029681 in words is "four hundred fifty-three million, twenty-nine thousand, six hundred eighty-one".