23090534 has 4 divisors (see below), whose sum is σ = 34635804. Its totient is φ = 11545266.

The previous prime is 23090531. The next prime is 23090537. The reversal of 23090534 is 43509032.

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

It is an interprime number because it is at equal distance from previous prime (23090531) and next prime (23090537).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23090531) by changing a digit.

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, 5772632 + ... + 5772635.

It is an arithmetic number, because the mean of its divisors is an integer number (8658951).

Almost surely, 2^23090534 is an apocalyptic number.

23090534 is a deficient number, since it is larger than the sum of its proper divisors (11545270).

23090534 is a wasteful number, since it uses less digits than its factorization.

23090534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11545269.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 23090534 is about 4805.2610751134. The cubic root of 23090534 is about 284.7593495378.

Adding to 23090534 its reverse (43509032), we get a palindrome (66599566).

The spelling of 23090534 in words is "twenty-three million, ninety thousand, five hundred thirty-four".