103261139 has 2 divisors, whose sum is σ = 103261140. Its totient is φ = 103261138.

The previous prime is 103261127. The next prime is 103261153. The reversal of 103261139 is 931162301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 103261139 - 2²⁰ = 102212563 is a prime.

It is not a weakly prime, because it can be changed into another prime (103161139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51630569 + 51630570.

It is an arithmetic number, because the mean of its divisors is an integer number (51630570).

Almost surely, 2^103261139 is an apocalyptic number.

103261139 is a deficient number, since it is larger than the sum of its proper divisors (1).

103261139 is an equidigital number, since it uses as much as digits as its factorization.

103261139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 103261139 is about 10161.7488160257. The cubic root of 103261139 is about 469.1506298430.

The spelling of 103261139 in words is "one hundred three million, two hundred sixty-one thousand, one hundred thirty-nine".