641514236 has 12 divisors (see below), whose sum is σ = 1224709080. Its totient is φ = 291597360.

The previous prime is 641514199. The next prime is 641514241. The reversal of 641514236 is 632415146.

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, 7289891 + ... + 7289978.

It is an arithmetic number, because the mean of its divisors is an integer number (102059090).

Almost surely, 2^641514236 is an apocalyptic number.

It is an amenable number.

641514236 is a deficient number, since it is larger than the sum of its proper divisors (583194844).

641514236 is a wasteful number, since it uses less digits than its factorization.

641514236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14579884 (or 14579882 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 641514236 is about 25328.1313167790. The cubic root of 641514236 is about 862.4529912348.

The spelling of 641514236 in words is "six hundred forty-one million, five hundred fourteen thousand, two hundred thirty-six".