5191460921 has 2 divisors, whose sum is σ = 5191460922. Its totient is φ = 5191460920.

The previous prime is 5191460891. The next prime is 5191460927. The reversal of 5191460921 is 1290641915.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5164003321 + 27457600 = 71861^2 + 5240^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5191460921 is a prime.

It is not a weakly prime, because it can be changed into another prime (5191460927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2595730460 + 2595730461.

It is an arithmetic number, because the mean of its divisors is an integer number (2595730461).

Almost surely, 2^5191460921 is an apocalyptic number.

It is an amenable number.

5191460921 is a deficient number, since it is larger than the sum of its proper divisors (1).

5191460921 is an equidigital number, since it uses as much as digits as its factorization.

5191460921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 5191460921 is about 72051.7933225815. The cubic root of 5191460921 is about 1731.5293726389.

The spelling of 5191460921 in words is "five billion, one hundred ninety-one million, four hundred sixty thousand, nine hundred twenty-one".