125139097 has 2 divisors, whose sum is σ = 125139098. Its totient is φ = 125139096.

The previous prime is 125139061. The next prime is 125139103. The reversal of 125139097 is 790931521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117050761 + 8088336 = 10819^2 + 2844^2 .

It is a cyclic number.

It is not a de Polignac number, because 125139097 - 2¹⁵ = 125106329 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (125139197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62569548 + 62569549.

It is an arithmetic number, because the mean of its divisors is an integer number (62569549).

Almost surely, 2^125139097 is an apocalyptic number.

It is an amenable number.

125139097 is a deficient number, since it is larger than the sum of its proper divisors (1).

125139097 is an equidigital number, since it uses as much as digits as its factorization.

125139097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17010, while the sum is 37.

The square root of 125139097 is about 11186.5587648749. The cubic root of 125139097 is about 500.1853939164.

The spelling of 125139097 in words is "one hundred twenty-five million, one hundred thirty-nine thousand, ninety-seven".