9031012157 has 2 divisors, whose sum is σ = 9031012158. Its totient is φ = 9031012156.

The previous prime is 9031012121. The next prime is 9031012171. The reversal of 9031012157 is 7512101309.

9031012157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6180947161 + 2850064996 = 78619^2 + 53386^2 .

It is a cyclic number.

It is not a de Polignac number, because 9031012157 - 2²⁴ = 9014234941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9031012117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4515506078 + 4515506079.

It is an arithmetic number, because the mean of its divisors is an integer number (4515506079).

Almost surely, 2^9031012157 is an apocalyptic number.

It is an amenable number.

9031012157 is a deficient number, since it is larger than the sum of its proper divisors (1).

9031012157 is an equidigital number, since it uses as much as digits as its factorization.

9031012157 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 9031012157 is about 95031.6376634645. The cubic root of 9031012157 is about 2082.4702650502.

The spelling of 9031012157 in words is "nine billion, thirty-one million, twelve thousand, one hundred fifty-seven".