641156246 has 4 divisors (see below), whose sum is σ = 961734372. Its totient is φ = 320578122.

The previous prime is 641156233. The next prime is 641156287. The reversal of 641156246 is 642651146.

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

It is a super-2 number, since 2×641156246² = 822162663569625032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160289060 + ... + 160289063.

It is an arithmetic number, because the mean of its divisors is an integer number (240433593).

Almost surely, 2^641156246 is an apocalyptic number.

641156246 is a deficient number, since it is larger than the sum of its proper divisors (320578126).

641156246 is a wasteful number, since it uses less digits than its factorization.

641156246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320578125.

The product of its digits is 34560, while the sum is 35.

The square root of 641156246 is about 25321.0632873108. The cubic root of 641156246 is about 862.2925338989.

The spelling of 641156246 in words is "six hundred forty-one million, one hundred fifty-six thousand, two hundred forty-six".