2154713997 has 4 divisors (see below), whose sum is σ = 2872952000. Its totient is φ = 1436475996.

The previous prime is 2154713989. The next prime is 2154714031. The reversal of 2154713997 is 7993174512.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2154713997 - 2³ = 2154713989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154711997) 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, 359118997 + ... + 359119002.

It is an arithmetic number, because the mean of its divisors is an integer number (718238000).

Almost surely, 2^2154713997 is an apocalyptic number.

It is an amenable number.

2154713997 is a deficient number, since it is larger than the sum of its proper divisors (718238003).

2154713997 is an equidigital number, since it uses as much as digits as its factorization.

2154713997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718238002.

The product of its digits is 476280, while the sum is 48.

The square root of 2154713997 is about 46418.8969817250. The cubic root of 2154713997 is about 1291.6054759793.

The spelling of 2154713997 in words is "two billion, one hundred fifty-four million, seven hundred thirteen thousand, nine hundred ninety-seven".