2156815483 has 8 divisors (see below), whose sum is σ = 2357354880. Its totient is φ = 1964461440.

The previous prime is 2156815429. The next prime is 2156815513. The reversal of 2156815483 is 3845186512.

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

It is a cyclic number.

It is not a de Polignac number, because 2156815483 - 2⁹ = 2156814971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2156815403) 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, 2045788 + ... + 2046841.

It is an arithmetic number, because the mean of its divisors is an integer number (294669360).

Almost surely, 2^2156815483 is an apocalyptic number.

2156815483 is a deficient number, since it is larger than the sum of its proper divisors (200539397).

2156815483 is a wasteful number, since it uses less digits than its factorization.

2156815483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4092677.

The product of its digits is 230400, while the sum is 43.

The square root of 2156815483 is about 46441.5275696224. The cubic root of 2156815483 is about 1292.0252391735.

The spelling of 2156815483 in words is "two billion, one hundred fifty-six million, eight hundred fifteen thousand, four hundred eighty-three".