641364542 has 32 divisors (see below), whose sum is σ = 1253714112. Its totient is φ = 238800384.

The previous prime is 641364539. The next prime is 641364547. The reversal of 641364542 is 245463146.

It is a super-2 number, since 2×641364542² = 822696951469739528, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641364547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100553 + ... + 106740.

It is an arithmetic number, because the mean of its divisors is an integer number (39178566).

Almost surely, 2^641364542 is an apocalyptic number.

641364542 is a deficient number, since it is larger than the sum of its proper divisors (612349570).

641364542 is a wasteful number, since it uses less digits than its factorization.

641364542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207332.

The product of its digits is 69120, while the sum is 35.

The square root of 641364542 is about 25325.1760507208. The cubic root of 641364542 is about 862.3859030476.

The spelling of 641364542 in words is "six hundred forty-one million, three hundred sixty-four thousand, five hundred forty-two".