645236162 has 32 divisors (see below), whose sum is σ = 1040558400. Its totient is φ = 299160000.

The previous prime is 645236159. The next prime is 645236171. The reversal of 645236162 is 261632546.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 581264 + ... + 582372.

It is an arithmetic number, because the mean of its divisors is an integer number (32517450).

Almost surely, 2^645236162 is an apocalyptic number.

645236162 is a deficient number, since it is larger than the sum of its proper divisors (395322238).

645236162 is a wasteful number, since it uses less digits than its factorization.

645236162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442.

The product of its digits is 51840, while the sum is 35.

The square root of 645236162 is about 25401.4992077239. The cubic root of 645236162 is about 864.1176974791.

The spelling of 645236162 in words is "six hundred forty-five million, two hundred thirty-six thousand, one hundred sixty-two".