2159174451 has 16 divisors (see below), whose sum is σ = 3290918400. Its totient is φ = 1233533568.

The previous prime is 2159174417. The next prime is 2159174461. The reversal of 2159174451 is 1544719512.

It is a happy number.

It is not a de Polignac number, because 2159174451 - 2¹⁵ = 2159141683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2159174461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114715 + ... + 132203.

It is an arithmetic number, because the mean of its divisors is an integer number (205682400).

Almost surely, 2^2159174451 is an apocalyptic number.

2159174451 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2159174451 is a deficient number, since it is larger than the sum of its proper divisors (1131743949).

2159174451 is a wasteful number, since it uses less digits than its factorization.

2159174451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23378.

The product of its digits is 50400, while the sum is 39.

The square root of 2159174451 is about 46466.9178125685. The cubic root of 2159174451 is about 1292.4961086447.

The spelling of 2159174451 in words is "two billion, one hundred fifty-nine million, one hundred seventy-four thousand, four hundred fifty-one".