23146538 has 4 divisors (see below), whose sum is σ = 34719810. Its totient is φ = 11573268.

The previous prime is 23146507. The next prime is 23146547. The reversal of 23146538 is 83564132.

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., 19509889 + 3636649 = 4417^2 + 1907^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5786633 + ... + 5786636.

Almost surely, 2^23146538 is an apocalyptic number.

23146538 is a deficient number, since it is larger than the sum of its proper divisors (11573272).

23146538 is a wasteful number, since it uses less digits than its factorization.

23146538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11573271.

The product of its digits is 17280, while the sum is 32.

The square root of 23146538 is about 4811.0849088329. The cubic root of 23146538 is about 284.9893830045.

The spelling of 23146538 in words is "twenty-three million, one hundred forty-six thousand, five hundred thirty-eight".