125540993 has 8 divisors (see below), whose sum is σ = 128174400. Its totient is φ = 122931760.

The previous prime is 125540977. The next prime is 125541001. The reversal of 125540993 is 399045521.

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

It is a cyclic number.

It is not a de Polignac number, because 125540993 - 2⁴ = 125540977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125540953) 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, 4646 + ... + 16512.

It is an arithmetic number, because the mean of its divisors is an integer number (16021800).

Almost surely, 2^125540993 is an apocalyptic number.

It is an amenable number.

125540993 is a deficient number, since it is larger than the sum of its proper divisors (2633407).

125540993 is a wasteful number, since it uses less digits than its factorization.

125540993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12087.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 125540993 is about 11204.5077089536. The cubic root of 125540993 is about 500.7202858783.

The spelling of 125540993 in words is "one hundred twenty-five million, five hundred forty thousand, nine hundred ninety-three".