3155623 has 4 divisors (see below), whose sum is σ = 3292848. Its totient is φ = 3018400.

The previous prime is 3155617. The next prime is 3155629. The reversal of 3155623 is 3265513.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (3155617) and next prime (3155629).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3155623 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3155629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68578 + ... + 68623.

It is an arithmetic number, because the mean of its divisors is an integer number (823212).

Almost surely, 2^3155623 is an apocalyptic number.

3155623 is a deficient number, since it is larger than the sum of its proper divisors (137225).

3155623 is a wasteful number, since it uses less digits than its factorization.

3155623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137224.

The product of its digits is 2700, while the sum is 25.

The square root of 3155623 is about 1776.4073294152. The cubic root of 3155623 is about 146.6768938002.

The spelling of 3155623 in words is "three million, one hundred fifty-five thousand, six hundred twenty-three".