2151399853 has 2 divisors, whose sum is σ = 2151399854. Its totient is φ = 2151399852.

The previous prime is 2151399841. The next prime is 2151399869. The reversal of 2151399853 is 3589931512.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1499006089 + 652393764 = 38717^2 + 25542^2 .

It is a cyclic number.

It is not a de Polignac number, because 2151399853 - 2⁵ = 2151399821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2151399823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1075699926 + 1075699927.

It is an arithmetic number, because the mean of its divisors is an integer number (1075699927).

Almost surely, 2^2151399853 is an apocalyptic number.

It is an amenable number.

2151399853 is a deficient number, since it is larger than the sum of its proper divisors (1).

2151399853 is an equidigital number, since it uses as much as digits as its factorization.

2151399853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 291600, while the sum is 46.

The square root of 2151399853 is about 46383.1850243167. The cubic root of 2151399853 is about 1290.9429343683.

The spelling of 2151399853 in words is "two billion, one hundred fifty-one million, three hundred ninety-nine thousand, eight hundred fifty-three".