125752146 has 64 divisors (see below), whose sum is σ = 290666880. Its totient is φ = 35942400.

The previous prime is 125752139. The next prime is 125752177. The reversal of 125752146 is 641257521.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77746 + ... + 79346.

It is an arithmetic number, because the mean of its divisors is an integer number (4541670).

Almost surely, 2^125752146 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125752146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145333440).

125752146 is an abundant number, since it is smaller than the sum of its proper divisors (164914734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125752146 is a wasteful number, since it uses less digits than its factorization.

125752146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1691.

The product of its digits is 16800, while the sum is 33.

The square root of 125752146 is about 11213.9264310053. The cubic root of 125752146 is about 501.0008565688. Note that the first 3 decimals are identical.

The spelling of 125752146 in words is "one hundred twenty-five million, seven hundred fifty-two thousand, one hundred forty-six".