2254942639 has 2 divisors, whose sum is σ = 2254942640. Its totient is φ = 2254942638.

The previous prime is 2254942631. The next prime is 2254942643. The reversal of 2254942639 is 9362494522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2254942639 - 2³ = 2254942631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2254942631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1127471319 + 1127471320.

It is an arithmetic number, because the mean of its divisors is an integer number (1127471320).

Almost surely, 2^2254942639 is an apocalyptic number.

2254942639 is a deficient number, since it is larger than the sum of its proper divisors (1).

2254942639 is an equidigital number, since it uses as much as digits as its factorization.

2254942639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 933120, while the sum is 46.

The square root of 2254942639 is about 47486.2363111670. The cubic root of 2254942639 is about 1311.3295048944.

The spelling of 2254942639 in words is "two billion, two hundred fifty-four million, nine hundred forty-two thousand, six hundred thirty-nine".