2261490139 has 2 divisors, whose sum is σ = 2261490140. Its totient is φ = 2261490138.

The previous prime is 2261490109. The next prime is 2261490167. The reversal of 2261490139 is 9310941622.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2261490139 - 2⁹ = 2261489627 is a prime.

It is a super-2 number, since 2×2261490139² = 10228675297588478642, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2261490098 and 2261490107.

It is not a weakly prime, because it can be changed into another prime (2261490109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1130745069 + 1130745070.

It is an arithmetic number, because the mean of its divisors is an integer number (1130745070).

Almost surely, 2^2261490139 is an apocalyptic number.

2261490139 is a deficient number, since it is larger than the sum of its proper divisors (1).

2261490139 is an equidigital number, since it uses as much as digits as its factorization.

2261490139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 2261490139 is about 47555.1273681398. The cubic root of 2261490139 is about 1312.5974799738.

The spelling of 2261490139 in words is "two billion, two hundred sixty-one million, four hundred ninety thousand, one hundred thirty-nine".