125288993605 has 8 divisors (see below), whose sum is σ = 150404434200. Its totient is φ = 100192766976.

The previous prime is 125288993521. The next prime is 125288993611. The reversal of 125288993605 is 506399882521.

It can be written as a sum of positive squares in 4 ways, for example, as 783048289 + 124505945316 = 27983^2 + 352854^2 .

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 125288993605 - 2⁷ = 125288993477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125288993605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4789140 + ... + 4815229.

It is an arithmetic number, because the mean of its divisors is an integer number (18800554275).

Almost surely, 2^125288993605 is an apocalyptic number.

It is an amenable number.

125288993605 is a deficient number, since it is larger than the sum of its proper divisors (25115440595).

125288993605 is an equidigital number, since it uses as much as digits as its factorization.

125288993605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9606983.

The product of its (nonzero) digits is 9331200, while the sum is 58.

The spelling of 125288993605 in words is "one hundred twenty-five billion, two hundred eighty-eight million, nine hundred ninety-three thousand, six hundred five".