454649631 has 4 divisors (see below), whose sum is σ = 606199512. Its totient is φ = 303099752.

The previous prime is 454649623. The next prime is 454649639. The reversal of 454649631 is 136946454.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (454649623) and next prime (454649639).

It is a cyclic number.

It is not a de Polignac number, because 454649631 - 2³ = 454649623 is a prime.

It is a super-2 number, since 2×454649631² = 413412573936872322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454649639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75774936 + ... + 75774941.

It is an arithmetic number, because the mean of its divisors is an integer number (151549878).

Almost surely, 2^454649631 is an apocalyptic number.

454649631 is a deficient number, since it is larger than the sum of its proper divisors (151549881).

454649631 is a wasteful number, since it uses less digits than its factorization.

454649631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151549880.

The product of its digits is 311040, while the sum is 42.

The square root of 454649631 is about 21322.5146500126. The cubic root of 454649631 is about 768.9396948228.

The spelling of 454649631 in words is "four hundred fifty-four million, six hundred forty-nine thousand, six hundred thirty-one".