1122025139 has 2 divisors, whose sum is σ = 1122025140. Its totient is φ = 1122025138.

The previous prime is 1122025103. The next prime is 1122025159. The reversal of 1122025139 is 9315202211.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1122025139 - 2¹⁶ = 1121959603 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1122025159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561012569 + 561012570.

It is an arithmetic number, because the mean of its divisors is an integer number (561012570).

Almost surely, 2^1122025139 is an apocalyptic number.

1122025139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122025139 is an equidigital number, since it uses as much as digits as its factorization.

1122025139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 1122025139 is about 33496.6436975408. The cubic root of 1122025139 is about 1039.1243674391.

The spelling of 1122025139 in words is "one billion, one hundred twenty-two million, twenty-five thousand, one hundred thirty-nine".