23139485 has 8 divisors (see below), whose sum is σ = 28663296. Its totient is φ = 17914320.

The previous prime is 23139481. The next prime is 23139491. The reversal of 23139485 is 58493132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23139485 - 2² = 23139481 is a prime.

It is a Duffinian number.

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, 74489 + ... + 74798.

It is an arithmetic number, because the mean of its divisors is an integer number (3582912).

Almost surely, 2^23139485 is an apocalyptic number.

It is an amenable number.

23139485 is a deficient number, since it is larger than the sum of its proper divisors (5523811).

23139485 is a wasteful number, since it uses less digits than its factorization.

23139485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149323.

The product of its digits is 25920, while the sum is 35.

The square root of 23139485 is about 4810.3518582324. The cubic root of 23139485 is about 284.9604336167.

The spelling of 23139485 in words is "twenty-three million, one hundred thirty-nine thousand, four hundred eighty-five".