23139486 has 16 divisors (see below), whose sum is σ = 51421200. Its totient is φ = 7713144.

The previous prime is 23139481. The next prime is 23139491. The reversal of 23139486 is 68493132.

It is an interprime number because it is at equal distance from previous prime (23139481) and next prime (23139491).

It is a self number, because there is not a number n which added to its sum of digits gives 23139486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23139481) 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 in 7 ways as a sum of consecutive naturals, for example, 214201 + ... + 214308.

It is an arithmetic number, because the mean of its divisors is an integer number (3213825).

Almost surely, 2^23139486 is an apocalyptic number.

23139486 is an abundant number, since it is smaller than the sum of its proper divisors (28281714).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23139486 is a wasteful number, since it uses less digits than its factorization.

23139486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428520 (or 428514 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 23139486 is about 4810.3519621749. The cubic root of 23139486 is about 284.9604377217.

The spelling of 23139486 in words is "twenty-three million, one hundred thirty-nine thousand, four hundred eighty-six".