23138354 has 4 divisors (see below), whose sum is σ = 34707534. Its totient is φ = 11569176.

The previous prime is 23138303. The next prime is 23138387. The reversal of 23138354 is 45383132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 21409129 + 1729225 = 4627^2 + 1315^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5784587 + ... + 5784590.

Almost surely, 2^23138354 is an apocalyptic number.

23138354 is a deficient number, since it is larger than the sum of its proper divisors (11569180).

23138354 is a wasteful number, since it uses less digits than its factorization.

23138354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11569179.

The product of its digits is 8640, while the sum is 29.

The square root of 23138354 is about 4810.2342978279. The cubic root of 23138354 is about 284.9557908240.

The spelling of 23138354 in words is "twenty-three million, one hundred thirty-eight thousand, three hundred fifty-four".