125152765249 has 8 divisors (see below), whose sum is σ = 125618324328. Its totient is φ = 124687305600.

The previous prime is 125152765201. The next prime is 125152765277. The reversal of 125152765249 is 942567251521.

It can be written as a sum of positive squares in 4 ways, for example, as 49492011024 + 75660754225 = 222468^2 + 275065^2 .

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 125152765249 - 2¹³ = 125152757057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125152765289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3333309 + ... + 3370645.

It is an arithmetic number, because the mean of its divisors is an integer number (15702290541).

Almost surely, 2^125152765249 is an apocalyptic number.

It is an amenable number.

125152765249 is a deficient number, since it is larger than the sum of its proper divisors (465559079).

125152765249 is a wasteful number, since it uses less digits than its factorization.

125152765249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49715.

The product of its digits is 1512000, while the sum is 49.

The spelling of 125152765249 in words is "one hundred twenty-five billion, one hundred fifty-two million, seven hundred sixty-five thousand, two hundred forty-nine".