9142657 has 4 divisors (see below), whose sum is σ = 9188800. Its totient is φ = 9096516.

The previous prime is 9142643. The next prime is 9142691. The reversal of 9142657 is 7562419.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9142657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9142697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22773 + ... + 23170.

It is an arithmetic number, because the mean of its divisors is an integer number (2297200).

Almost surely, 2^9142657 is an apocalyptic number.

It is an amenable number.

9142657 is a deficient number, since it is larger than the sum of its proper divisors (46143).

9142657 is a wasteful number, since it uses less digits than its factorization.

9142657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46142.

The product of its digits is 15120, while the sum is 34.

The square root of 9142657 is about 3023.6826883785. The cubic root of 9142657 is about 209.1016576190.

The spelling of 9142657 in words is "nine million, one hundred forty-two thousand, six hundred fifty-seven".