125683399 has 4 divisors (see below), whose sum is σ = 125802040. Its totient is φ = 125564760.

The previous prime is 125683379. The next prime is 125683403. The reversal of 125683399 is 993386521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 993386521 = 9929 ⋅100049.

It is a cyclic number.

It is not a de Polignac number, because 125683399 - 2²¹ = 123586247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125683319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57717 + ... + 59854.

It is an arithmetic number, because the mean of its divisors is an integer number (31450510).

Almost surely, 2^125683399 is an apocalyptic number.

125683399 is a deficient number, since it is larger than the sum of its proper divisors (118641).

125683399 is a wasteful number, since it uses less digits than its factorization.

125683399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118640.

The product of its digits is 349920, while the sum is 46.

The square root of 125683399 is about 11210.8607608872. The cubic root of 125683399 is about 500.9095431260.

The spelling of 125683399 in words is "one hundred twenty-five million, six hundred eighty-three thousand, three hundred ninety-nine".