641406153 has 8 divisors (see below), whose sum is σ = 858616416. Its totient is φ = 425900000.

The previous prime is 641406149. The next prime is 641406163. The reversal of 641406153 is 351604146.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 641406153 - 2² = 641406149 is a prime.

It is a super-2 number, since 2×641406153² = 822803706212518818, 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 641406153.

It is not an unprimeable number, because it can be changed into a prime (641406163) 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, 425148 + ... + 426653.

It is an arithmetic number, because the mean of its divisors is an integer number (107327052).

Almost surely, 2^641406153 is an apocalyptic number.

It is an amenable number.

641406153 is a deficient number, since it is larger than the sum of its proper divisors (217210263).

641406153 is a wasteful number, since it uses less digits than its factorization.

641406153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852055.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 641406153 is about 25325.9975716654. The cubic root of 641406153 is about 862.4045528489.

The spelling of 641406153 in words is "six hundred forty-one million, four hundred six thousand, one hundred fifty-three".