120400079 has 2 divisors, whose sum is σ = 120400080. Its totient is φ = 120400078.

The previous prime is 120400073. The next prime is 120400081. The reversal of 120400079 is 970004021.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120400079 is a prime.

Together with 120400081, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120400073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60200039 + 60200040.

It is an arithmetic number, because the mean of its divisors is an integer number (60200040).

Almost surely, 2^120400079 is an apocalyptic number.

120400079 is a deficient number, since it is larger than the sum of its proper divisors (1).

120400079 is an equidigital number, since it uses as much as digits as its factorization.

120400079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 120400079 is about 10972.6969793210. The cubic root of 120400079 is about 493.7899621771.

The spelling of 120400079 in words is "one hundred twenty million, four hundred thousand, seventy-nine".