120131897 has 2 divisors, whose sum is σ = 120131898. Its totient is φ = 120131896.

The previous prime is 120131873. The next prime is 120131917. The reversal of 120131897 is 798131021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118026496 + 2105401 = 10864^2 + 1451^2 .

It is a cyclic number.

It is not a de Polignac number, because 120131897 - 2¹² = 120127801 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (120131597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60065948 + 60065949.

It is an arithmetic number, because the mean of its divisors is an integer number (60065949).

Almost surely, 2^120131897 is an apocalyptic number.

It is an amenable number.

120131897 is a deficient number, since it is larger than the sum of its proper divisors (1).

120131897 is an equidigital number, since it uses as much as digits as its factorization.

120131897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 120131897 is about 10960.4697435831. The cubic root of 120131897 is about 493.4230631262.

The spelling of 120131897 in words is "one hundred twenty million, one hundred thirty-one thousand, eight hundred ninety-seven".