125819983 has 2 divisors, whose sum is σ = 125819984. Its totient is φ = 125819982.

The previous prime is 125819927. The next prime is 125820007. The reversal of 125819983 is 389918521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125819983 - 2⁹ = 125819471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125819383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62909991 + 62909992.

It is an arithmetic number, because the mean of its divisors is an integer number (62909992).

Almost surely, 2^125819983 is an apocalyptic number.

125819983 is a deficient number, since it is larger than the sum of its proper divisors (1).

125819983 is an equidigital number, since it uses as much as digits as its factorization.

125819983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 46.

The square root of 125819983 is about 11216.9506997223. The cubic root of 125819983 is about 501.0909286848.

The spelling of 125819983 in words is "one hundred twenty-five million, eight hundred nineteen thousand, nine hundred eighty-three".