623136135 has 16 divisors (see below), whose sum is σ = 997976160. Its totient is φ = 332019840.

The previous prime is 623136133. The next prime is 623136149. The reversal of 623136135 is 531631326.

It is a happy number.

It is not a de Polignac number, because 623136135 - 2¹ = 623136133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623136133) 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 in 15 ways as a sum of consecutive naturals, for example, 3396 + ... + 35465.

It is an arithmetic number, because the mean of its divisors is an integer number (62373510).

Almost surely, 2^623136135 is an apocalyptic number.

623136135 is a deficient number, since it is larger than the sum of its proper divisors (374840025).

623136135 is a wasteful number, since it uses less digits than its factorization.

623136135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39938.

The product of its digits is 9720, while the sum is 30.

The square root of 623136135 is about 24962.6948665404. The cubic root of 623136135 is about 854.1372165879.

The spelling of 623136135 in words is "six hundred twenty-three million, one hundred thirty-six thousand, one hundred thirty-five".