9122157 has 12 divisors (see below), whose sum is σ = 14374464. Its totient is φ = 5528520.

The previous prime is 9122143. The next prime is 9122159. The reversal of 9122157 is 7512219.

9122157 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9122157 - 2¹⁵ = 9089389 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 9122157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9122159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45973 + ... + 46170.

It is an arithmetic number, because the mean of its divisors is an integer number (1197872).

Almost surely, 2^9122157 is an apocalyptic number.

It is an amenable number.

9122157 is a deficient number, since it is larger than the sum of its proper divisors (5252307).

9122157 is a wasteful number, since it uses less digits than its factorization.

9122157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92160 (or 92157 counting only the distinct ones).

The product of its digits is 1260, while the sum is 27.

The square root of 9122157 is about 3020.2908800313. The cubic root of 9122157 is about 208.9452555350.

The spelling of 9122157 in words is "nine million, one hundred twenty-two thousand, one hundred fifty-seven".