641326154 has 16 divisors (see below), whose sum is σ = 1099771008. Its totient is φ = 274765392.

The previous prime is 641326151. The next prime is 641326157. The reversal of 641326154 is 451623146.

641326154 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (641326151) and next prime (641326157).

It is a super-2 number, since 2×641326154² = 822598471608863432, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 641326154.

It is not an unprimeable number, because it can be changed into a prime (641326151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56744 + ... + 67100.

It is an arithmetic number, because the mean of its divisors is an integer number (68735688).

Almost surely, 2^641326154 is an apocalyptic number.

641326154 is a deficient number, since it is larger than the sum of its proper divisors (458444854).

641326154 is a wasteful number, since it uses less digits than its factorization.

641326154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14789.

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

The square root of 641326154 is about 25324.4181374420. The cubic root of 641326154 is about 862.3686970603.

The spelling of 641326154 in words is "six hundred forty-one million, three hundred twenty-six thousand, one hundred fifty-four".