23072158 has 4 divisors (see below), whose sum is σ = 34608240. Its totient is φ = 11536078.

The previous prime is 23072131. The next prime is 23072167. The reversal of 23072158 is 85127032.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5768038 + ... + 5768041.

It is an arithmetic number, because the mean of its divisors is an integer number (8652060).

Almost surely, 2^23072158 is an apocalyptic number.

23072158 is a deficient number, since it is larger than the sum of its proper divisors (11536082).

23072158 is a wasteful number, since it uses less digits than its factorization.

23072158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11536081.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 23072158 is about 4803.3486236167. The cubic root of 23072158 is about 284.6837900534.

It can be divided in two parts, 2307 and 2158, that added together give a triangular number (4465 = T₉₄).

The spelling of 23072158 in words is "twenty-three million, seventy-two thousand, one hundred fifty-eight".