2156433 has 8 divisors (see below), whose sum is σ = 3044448. Its totient is φ = 1353024.

The previous prime is 2156417. The next prime is 2156437. The reversal of 2156433 is 3346512.

It is a happy number.

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

It is not a de Polignac number, because 2156433 - 2⁴ = 2156417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2156437) 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, 21091 + ... + 21192.

It is an arithmetic number, because the mean of its divisors is an integer number (380556).

2^2156433 is an apocalyptic number.

It is an amenable number.

2156433 is a deficient number, since it is larger than the sum of its proper divisors (888015).

2156433 is a wasteful number, since it uses less digits than its factorization.

2156433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42303.

The product of its digits is 2160, while the sum is 24.

The square root of 2156433 is about 1468.4798262149. The cubic root of 2156433 is about 129.1948860069.

The spelling of 2156433 in words is "two million, one hundred fifty-six thousand, four hundred thirty-three".