640177113 has 8 divisors (see below), whose sum is σ = 853938976. Its totient is φ = 426600000.

The previous prime is 640177103. The next prime is 640177123. The reversal of 640177113 is 311771046.

It is an interprime number because it is at equal distance from previous prime (640177103) and next prime (640177123).

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

It is not a de Polignac number, because 640177113 - 2⁶ = 640177049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (640177103) 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, 37888 + ... + 52113.

It is an arithmetic number, because the mean of its divisors is an integer number (106742372).

Almost surely, 2^640177113 is an apocalyptic number.

It is an amenable number.

640177113 is a deficient number, since it is larger than the sum of its proper divisors (213761863).

640177113 is a wasteful number, since it uses less digits than its factorization.

640177113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92375.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 640177113 is about 25301.7215422192. The cubic root of 640177113 is about 861.8533641789.

It can be divided in two parts, 64017 and 7113, that multiplied together give a square (455352921 = 21339²).

The spelling of 640177113 in words is "six hundred forty million, one hundred seventy-seven thousand, one hundred thirteen".