23157733 has 4 divisors (see below), whose sum is σ = 23172480. Its totient is φ = 23142988.

The previous prime is 23157727. The next prime is 23157749. The reversal of 23157733 is 33775132.

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-23157733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23157695 and 23157704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23157703) 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, 4693 + ... + 8266.

It is an arithmetic number, because the mean of its divisors is an integer number (5793120).

Almost surely, 2^23157733 is an apocalyptic number.

It is an amenable number.

23157733 is a deficient number, since it is larger than the sum of its proper divisors (14747).

23157733 is a wasteful number, since it uses less digits than its factorization.

23157733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14746.

The product of its digits is 13230, while the sum is 31.

The square root of 23157733 is about 4812.2482271803. The cubic root of 23157733 is about 285.0353213635.

The spelling of 23157733 in words is "twenty-three million, one hundred fifty-seven thousand, seven hundred thirty-three".