641154373 has 8 divisors (see below), whose sum is σ = 677034720. Its totient is φ = 605487600.

The previous prime is 641154361. The next prime is 641154391. The reversal of 641154373 is 373451146.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-641154373 is a prime.

It is a super-2 number, since 2×641154373² = 822157860034046258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641154673) 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, 47203 + ... + 59248.

It is an arithmetic number, because the mean of its divisors is an integer number (84629340).

Almost surely, 2^641154373 is an apocalyptic number.

It is an amenable number.

641154373 is a deficient number, since it is larger than the sum of its proper divisors (35880347).

641154373 is a wasteful number, since it uses less digits than its factorization.

641154373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106787.

The product of its digits is 30240, while the sum is 34.

The square root of 641154373 is about 25321.0263022651. The cubic root of 641154373 is about 862.2916942308.

The spelling of 641154373 in words is "six hundred forty-one million, one hundred fifty-four thousand, three hundred seventy-three".