665130235 has 32 divisors (see below), whose sum is σ = 1018271232. Its totient is φ = 404974080.

The previous prime is 665130233. The next prime is 665130259. The reversal of 665130235 is 532031566.

It is not a de Polignac number, because 665130235 - 2¹ = 665130233 is a prime.

It is a super-2 number, since 2×665130235² = 884796459022310450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 665130197 and 665130206.

It is not an unprimeable number, because it can be changed into a prime (665130233) 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 31 ways as a sum of consecutive naturals, for example, 3534 + ... + 36643.

It is an arithmetic number, because the mean of its divisors is an integer number (31820976).

Almost surely, 2^665130235 is an apocalyptic number.

665130235 is a deficient number, since it is larger than the sum of its proper divisors (353140997).

665130235 is a wasteful number, since it uses less digits than its factorization.

665130235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40243.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 665130235 is about 25790.1189411759. The cubic root of 665130235 is about 872.9088501821.

The spelling of 665130235 in words is "six hundred sixty-five million, one hundred thirty thousand, two hundred thirty-five".