23207542 has 4 divisors (see below), whose sum is σ = 34811316. Its totient is φ = 11603770.

The previous prime is 23207539. The next prime is 23207543. The reversal of 23207542 is 24570232.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23207543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5801884 + ... + 5801887.

It is an arithmetic number, because the mean of its divisors is an integer number (8702829).

Almost surely, 2^23207542 is an apocalyptic number.

23207542 is a deficient number, since it is larger than the sum of its proper divisors (11603774).

23207542 is a wasteful number, since it uses less digits than its factorization.

23207542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11603773.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 23207542 is about 4817.4206791602. The cubic root of 23207542 is about 285.2395318772.

Adding to 23207542 its reverse (24570232), we get a palindrome (47777774).

The spelling of 23207542 in words is "twenty-three million, two hundred seven thousand, five hundred forty-two".