125194039 has 2 divisors, whose sum is σ = 125194040. Its totient is φ = 125194038.

The previous prime is 125194009. The next prime is 125194067. The reversal of 125194039 is 930491521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125194039 - 2⁷ = 125193911 is a prime.

It is a super-2 number, since 2×125194039² = 31347094802267042, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 125193995 and 125194013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125194009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62597019 + 62597020.

It is an arithmetic number, because the mean of its divisors is an integer number (62597020).

Almost surely, 2^125194039 is an apocalyptic number.

125194039 is a deficient number, since it is larger than the sum of its proper divisors (1).

125194039 is an equidigital number, since it uses as much as digits as its factorization.

125194039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 125194039 is about 11189.0142103762. The cubic root of 125194039 is about 500.2585849113.

The spelling of 125194039 in words is "one hundred twenty-five million, one hundred ninety-four thousand, thirty-nine".