9012157 has 8 divisors (see below), whose sum is σ = 11236032. Its totient is φ = 7022400.

The previous prime is 9012149. The next prime is 9012181. The reversal of 9012157 is 7512109.

9012157 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9012157 - 2³ = 9012149 is a prime.

It is a Duffinian number.

9012157 is strictly pandigital in base 8.

9012157 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9012187) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58444 + ... + 58597.

It is an arithmetic number, because the mean of its divisors is an integer number (1404504).

Almost surely, 2^9012157 is an apocalyptic number.

It is an amenable number.

9012157 is a deficient number, since it is larger than the sum of its proper divisors (2223875).

9012157 is a wasteful number, since it uses less digits than its factorization.

9012157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117059.

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 9012157 is about 3002.0254829032. The cubic root of 9012157 is about 208.1019978667.

The spelling of 9012157 in words is "nine million, twelve thousand, one hundred fifty-seven".