640101741 has 32 divisors (see below), whose sum is σ = 895373952. Its totient is φ = 406425600.

The previous prime is 640101703. The next prime is 640101751. The reversal of 640101741 is 147101046.

It is not a de Polignac number, because 640101741 - 2¹⁰ = 640100717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (640101751) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 950781 + ... + 951453.

It is an arithmetic number, because the mean of its divisors is an integer number (27980436).

Almost surely, 2^640101741 is an apocalyptic number.

It is an amenable number.

640101741 is a deficient number, since it is larger than the sum of its proper divisors (255272211).

640101741 is a wasteful number, since it uses less digits than its factorization.

640101741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 640101741 is about 25300.2320345091. The cubic root of 640101741 is about 861.8195390806.

Adding to 640101741 its reverse (147101046), we get a palindrome (787202787).

The spelling of 640101741 in words is "six hundred forty million, one hundred one thousand, seven hundred forty-one".