641127157 has 16 divisors (see below), whose sum is σ = 743097600. Its totient is φ = 547525440.

The previous prime is 641127143. The next prime is 641127169. The reversal of 641127157 is 751721146.

It is not a de Polignac number, because 641127157 - 2¹¹ = 641125109 is a prime.

It is a super-2 number, since 2×641127157² = 822088062885805298, 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 (641127187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15357 + ... + 38962.

It is an arithmetic number, because the mean of its divisors is an integer number (46443600).

Almost surely, 2^641127157 is an apocalyptic number.

It is an amenable number.

641127157 is a deficient number, since it is larger than the sum of its proper divisors (101970443).

641127157 is a wasteful number, since it uses less digits than its factorization.

641127157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54396.

The product of its digits is 11760, while the sum is 34.

The square root of 641127157 is about 25320.4888775869. The cubic root of 641127157 is about 862.2794930804.

The spelling of 641127157 in words is "six hundred forty-one million, one hundred twenty-seven thousand, one hundred fifty-seven".