135807623 has 8 divisors (see below), whose sum is σ = 155547648. Its totient is φ = 116152344.

The previous prime is 135807601. The next prime is 135807629. The reversal of 135807623 is 326708531.

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

It is not a de Polignac number, because 135807623 - 2¹² = 135803527 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 (135807629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17711 + ... + 24192.

It is an arithmetic number, because the mean of its divisors is an integer number (19443456).

Almost surely, 2^135807623 is an apocalyptic number.

135807623 is a deficient number, since it is larger than the sum of its proper divisors (19740025).

135807623 is an equidigital number, since it uses as much as digits as its factorization.

135807623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42373.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 135807623 is about 11653.6527749886. The cubic root of 135807623 is about 514.0137255541.

The spelling of 135807623 in words is "one hundred thirty-five million, eight hundred seven thousand, six hundred twenty-three".