2231125639 has 2 divisors, whose sum is σ = 2231125640. Its totient is φ = 2231125638.

The previous prime is 2231125627. The next prime is 2231125681. The reversal of 2231125639 is 9365211322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2231125639 - 2⁵ = 2231125607 is a prime.

It is a super-3 number, since 3×2231125639³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2231125609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115562819 + 1115562820.

It is an arithmetic number, because the mean of its divisors is an integer number (1115562820).

Almost surely, 2^2231125639 is an apocalyptic number.

2231125639 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231125639 is an equidigital number, since it uses as much as digits as its factorization.

2231125639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 34.

The square root of 2231125639 is about 47234.7926744683. The cubic root of 2231125639 is about 1306.6963429574.

The spelling of 2231125639 in words is "two billion, two hundred thirty-one million, one hundred twenty-five thousand, six hundred thirty-nine".