451630136 has 16 divisors (see below), whose sum is σ = 850507800. Its totient is φ = 224828064.

The previous prime is 451630121. The next prime is 451630159. The reversal of 451630136 is 631036154.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 451630099 and 451630108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121430 + ... + 125093.

Almost surely, 2^451630136 is an apocalyptic number.

It is an amenable number.

451630136 is a deficient number, since it is larger than the sum of its proper divisors (398877664).

451630136 is a wasteful number, since it uses less digits than its factorization.

451630136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246758 (or 246754 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 451630136 is about 21251.5913757064. The cubic root of 451630136 is about 767.2336421831.

The spelling of 451630136 in words is "four hundred fifty-one million, six hundred thirty thousand, one hundred thirty-six".