139825193 has 2 divisors, whose sum is σ = 139825194. Its totient is φ = 139825192.

The previous prime is 139825177. The next prime is 139825201. The reversal of 139825193 is 391528931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86359849 + 53465344 = 9293^2 + 7312^2 .

It is a cyclic number.

It is not a de Polignac number, because 139825193 - 2⁴ = 139825177 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 139825193.

It is not a weakly prime, because it can be changed into another prime (139825163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69912596 + 69912597.

It is an arithmetic number, because the mean of its divisors is an integer number (69912597).

Almost surely, 2^139825193 is an apocalyptic number.

It is an amenable number.

139825193 is a deficient number, since it is larger than the sum of its proper divisors (1).

139825193 is an equidigital number, since it uses as much as digits as its factorization.

139825193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 41.

The square root of 139825193 is about 11824.7703148941. The cubic root of 139825193 is about 519.0332048605.

The spelling of 139825193 in words is "one hundred thirty-nine million, eight hundred twenty-five thousand, one hundred ninety-three".