630136399 has 4 divisors (see below), whose sum is σ = 667203264. Its totient is φ = 593069536.

The previous prime is 630136393. The next prime is 630136427. The reversal of 630136399 is 993631036.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 630136399 - 2⁷ = 630136271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630136393) 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, 18533407 + ... + 18533440.

It is an arithmetic number, because the mean of its divisors is an integer number (166800816).

Almost surely, 2^630136399 is an apocalyptic number.

630136399 is a deficient number, since it is larger than the sum of its proper divisors (37066865).

630136399 is a wasteful number, since it uses less digits than its factorization.

630136399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37066864.

The product of its (nonzero) digits is 78732, while the sum is 40.

The square root of 630136399 is about 25102.5177820871. The cubic root of 630136399 is about 857.3237513142.

The spelling of 630136399 in words is "six hundred thirty million, one hundred thirty-six thousand, three hundred ninety-nine".