100507691 has 2 divisors, whose sum is σ = 100507692. Its totient is φ = 100507690.

The previous prime is 100507669. The next prime is 100507697. The reversal of 100507691 is 196705001.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (196705001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100507691 - 2¹⁰ = 100506667 is a prime.

It is not a weakly prime, because it can be changed into another prime (100507697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50253845 + 50253846.

It is an arithmetic number, because the mean of its divisors is an integer number (50253846).

Almost surely, 2^100507691 is an apocalyptic number.

100507691 is a deficient number, since it is larger than the sum of its proper divisors (1).

100507691 is an equidigital number, since it uses as much as digits as its factorization.

100507691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1890, while the sum is 29.

The square root of 100507691 is about 10025.3524127584. The cubic root of 100507691 is about 464.9430554232.

The spelling of 100507691 in words is "one hundred million, five hundred seven thousand, six hundred ninety-one".