9423157 has 4 divisors (see below), whose sum is σ = 9429580. Its totient is φ = 9416736.

The previous prime is 9423133. The next prime is 9423179. The reversal of 9423157 is 7513249.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7513249 = 23 ⋅326663.

It can be written as a sum of positive squares in 2 ways, for example, as 236196 + 9186961 = 486^2 + 3031^2 .

It is a cyclic number.

It is not a de Polignac number, because 9423157 - 2¹¹ = 9421109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9423187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193 + ... + 4345.

It is an arithmetic number, because the mean of its divisors is an integer number (2357395).

Almost surely, 2^9423157 is an apocalyptic number.

It is an amenable number.

9423157 is a deficient number, since it is larger than the sum of its proper divisors (6423).

9423157 is a wasteful number, since it uses less digits than its factorization.

9423157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6422.

The product of its digits is 7560, while the sum is 31.

The square root of 9423157 is about 3069.7161106526. The cubic root of 9423157 is about 211.2185915514.

The spelling of 9423157 in words is "nine million, four hundred twenty-three thousand, one hundred fifty-seven".