5261454139 has 2 divisors, whose sum is σ = 5261454140. Its totient is φ = 5261454138.

The previous prime is 5261454097. The next prime is 5261454169. The reversal of 5261454139 is 9314541625.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5261454139 - 2²⁵ = 5227899707 is a prime.

It is not a weakly prime, because it can be changed into another prime (5261454169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2630727069 + 2630727070.

It is an arithmetic number, because the mean of its divisors is an integer number (2630727070).

Almost surely, 2^5261454139 is an apocalyptic number.

5261454139 is a deficient number, since it is larger than the sum of its proper divisors (1).

5261454139 is an equidigital number, since it uses as much as digits as its factorization.

5261454139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129600, while the sum is 40.

The square root of 5261454139 is about 72535.8817344906. The cubic root of 5261454139 is about 1739.2763691780.

The spelling of 5261454139 in words is "five billion, two hundred sixty-one million, four hundred fifty-four thousand, one hundred thirty-nine".