125335989 has 12 divisors (see below), whose sum is σ = 190569600. Its totient is φ = 79159464.

The previous prime is 125335933. The next prime is 125335997. The reversal of 125335989 is 989533521.

125335989 is a `hidden beast` number, since 1 + 2 + 53 + 3 + 598 + 9 = 666.

It is not a de Polignac number, because 125335989 - 2¹¹ = 125333941 is a prime.

It is a super-2 number, since 2×125335989² = 31418220277216242, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125335289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 366309 + ... + 366650.

It is an arithmetic number, because the mean of its divisors is an integer number (15880800).

Almost surely, 2^125335989 is an apocalyptic number.

125335989 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

125335989 is a deficient number, since it is larger than the sum of its proper divisors (65233611).

125335989 is a wasteful number, since it uses less digits than its factorization.

125335989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732984 (or 732981 counting only the distinct ones).

The product of its digits is 291600, while the sum is 45.

The square root of 125335989 is about 11195.3556888560. The cubic root of 125335989 is about 500.4475845499.

The spelling of 125335989 in words is "one hundred twenty-five million, three hundred thirty-five thousand, nine hundred eighty-nine".