153138623 has 12 divisors (see below), whose sum is σ = 174646248. Its totient is φ = 133158960.

The previous prime is 153138599. The next prime is 153138631. The reversal of 153138623 is 326831351.

It is not a de Polignac number, because 153138623 - 2⁸ = 153138367 is a prime.

It is a super-2 number, since 2×153138623² = 46902875708672258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 153138623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153138673) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7340 + ... + 18977.

It is an arithmetic number, because the mean of its divisors is an integer number (14553854).

Almost surely, 2^153138623 is an apocalyptic number.

153138623 is a deficient number, since it is larger than the sum of its proper divisors (21507625).

153138623 is a wasteful number, since it uses less digits than its factorization.

153138623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26374 (or 26351 counting only the distinct ones).

The product of its digits is 12960, while the sum is 32.

The square root of 153138623 is about 12374.9191108467. The cubic root of 153138623 is about 535.0096053244.

Adding to 153138623 its reverse (326831351), we get a palindrome (479969974).

The spelling of 153138623 in words is "one hundred fifty-three million, one hundred thirty-eight thousand, six hundred twenty-three".