623135 has 8 divisors (see below), whose sum is σ = 791856. Its totient is φ = 469120.

The previous prime is 623107. The next prime is 623171. The reversal of 623135 is 531326.

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

It is not a de Polignac number, because 623135 - 2⁶ = 623071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3581 + ... + 3750.

It is an arithmetic number, because the mean of its divisors is an integer number (98982).

2⁶²³¹³⁵ is an apocalyptic number.

623135 is a deficient number, since it is larger than the sum of its proper divisors (168721).

623135 is a wasteful number, since it uses less digits than its factorization.

623135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7353.

The product of its digits is 540, while the sum is 20.

The square root of 623135 is about 789.3890042305. The cubic root of 623135 is about 85.4136698003.

Subtracting from 623135 its reverse (531326), we obtain a square (91809 = 303²).

The spelling of 623135 in words is "six hundred twenty-three thousand, one hundred thirty-five".