2391054439 has 2 divisors, whose sum is σ = 2391054440. Its totient is φ = 2391054438.

The previous prime is 2391054427. The next prime is 2391054443. The reversal of 2391054439 is 9344501932.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2391054439 - 2¹³ = 2391046247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2391054499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1195527219 + 1195527220.

It is an arithmetic number, because the mean of its divisors is an integer number (1195527220).

Almost surely, 2^2391054439 is an apocalyptic number.

2391054439 is a deficient number, since it is larger than the sum of its proper divisors (1).

2391054439 is an equidigital number, since it uses as much as digits as its factorization.

2391054439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 2391054439 is about 48898.4093708579. The cubic root of 2391054439 is about 1337.2003698800.

The spelling of 2391054439 in words is "two billion, three hundred ninety-one million, fifty-four thousand, four hundred thirty-nine".