125105997 has 8 divisors (see below), whose sum is σ = 166874656. Its totient is φ = 83370672.

The previous prime is 125105969. The next prime is 125105999. The reversal of 125105997 is 799501521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 125105997 - 2⁸ = 125105741 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 (125105999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2403 + ... + 15999.

It is an arithmetic number, because the mean of its divisors is an integer number (20859332).

Almost surely, 2^125105997 is an apocalyptic number.

It is an amenable number.

125105997 is a deficient number, since it is larger than the sum of its proper divisors (41768659).

125105997 is a wasteful number, since it uses less digits than its factorization.

125105997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16667.

The product of its (nonzero) digits is 28350, while the sum is 39.

The square root of 125105997 is about 11185.0792129515. The cubic root of 125105997 is about 500.1412894042.

The spelling of 125105997 in words is "one hundred twenty-five million, one hundred five thousand, nine hundred ninety-seven".