120157556173 has 2 divisors, whose sum is σ = 120157556174. Its totient is φ = 120157556172.

The previous prime is 120157556039. The next prime is 120157556219. The reversal of 120157556173 is 371655751021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89666110249 + 30491445924 = 299443^2 + 174618^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120157556173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120157556473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60078778086 + 60078778087.

It is an arithmetic number, because the mean of its divisors is an integer number (60078778087).

Almost surely, 2^120157556173 is an apocalyptic number.

It is an amenable number.

120157556173 is a deficient number, since it is larger than the sum of its proper divisors (1).

120157556173 is an equidigital number, since it uses as much as digits as its factorization.

120157556173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 220500, while the sum is 43.

The spelling of 120157556173 in words is "one hundred twenty billion, one hundred fifty-seven million, five hundred fifty-six thousand, one hundred seventy-three".