120747691 has 2 divisors, whose sum is σ = 120747692. Its totient is φ = 120747690.

The previous prime is 120747659. The next prime is 120747701. The reversal of 120747691 is 196747021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120747691 - 2⁵ = 120747659 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120747691.

It is not a weakly prime, because it can be changed into another prime (120747191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60373845 + 60373846.

It is an arithmetic number, because the mean of its divisors is an integer number (60373846).

Almost surely, 2^120747691 is an apocalyptic number.

120747691 is a deficient number, since it is larger than the sum of its proper divisors (1).

120747691 is an equidigital number, since it uses as much as digits as its factorization.

120747691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 120747691 is about 10988.5254242778. The cubic root of 120747691 is about 494.2647193151.

The spelling of 120747691 in words is "one hundred twenty million, seven hundred forty-seven thousand, six hundred ninety-one".