10245139 has 2 divisors, whose sum is σ = 10245140. Its totient is φ = 10245138.

The previous prime is 10245089. The next prime is 10245163. The reversal of 10245139 is 93154201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10245139 - 2²¹ = 8147987 is a prime.

It is not a weakly prime, because it can be changed into another prime (10245239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5122569 + 5122570.

It is an arithmetic number, because the mean of its divisors is an integer number (5122570).

Almost surely, 2^10245139 is an apocalyptic number.

10245139 is a deficient number, since it is larger than the sum of its proper divisors (1).

10245139 is an equidigital number, since it uses as much as digits as its factorization.

10245139 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 25.

The square root of 10245139 is about 3200.8028680317. The cubic root of 10245139 is about 217.1897297944.

The spelling of 10245139 in words is "ten million, two hundred forty-five thousand, one hundred thirty-nine".