630137155 has 16 divisors (see below), whose sum is σ = 787486464. Its totient is φ = 483517440.

The previous prime is 630137153. The next prime is 630137173. The reversal of 630137155 is 551731036.

It is not a de Polignac number, because 630137155 - 2¹ = 630137153 is a prime.

It is a super-2 number, since 2×630137155² = 794145668222988050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (630137153) 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 15 ways as a sum of consecutive naturals, for example, 474 + ... + 35503.

It is an arithmetic number, because the mean of its divisors is an integer number (49217904).

Almost surely, 2^630137155 is an apocalyptic number.

630137155 is a deficient number, since it is larger than the sum of its proper divisors (157349309).

630137155 is a wasteful number, since it uses less digits than its factorization.

630137155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36126.

The product of its (nonzero) digits is 9450, while the sum is 31.

The square root of 630137155 is about 25102.5328403331. The cubic root of 630137155 is about 857.3240941693.

The spelling of 630137155 in words is "six hundred thirty million, one hundred thirty-seven thousand, one hundred fifty-five".