100640307 has 8 divisors (see below), whose sum is σ = 134294976. Its totient is φ = 67039592.

The previous prime is 100640303. The next prime is 100640329. The reversal of 100640307 is 703046001.

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

It is a cyclic number.

It is not a de Polignac number, because 100640307 - 2² = 100640303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100640303) 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, 8913 + ... + 16754.

It is an arithmetic number, because the mean of its divisors is an integer number (16786872).

Almost surely, 2^100640307 is an apocalyptic number.

100640307 is a deficient number, since it is larger than the sum of its proper divisors (33654669).

100640307 is a wasteful number, since it uses less digits than its factorization.

100640307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26977.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 100640307 is about 10031.9642642904. The cubic root of 100640307 is about 465.1474569924.

Adding to 100640307 its reverse (703046001), we get a palindrome (803686308).

The spelling of 100640307 in words is "one hundred million, six hundred forty thousand, three hundred seven".