125641761 has 16 divisors (see below), whose sum is σ = 194594688. Its totient is φ = 70617600.

The previous prime is 125641727. The next prime is 125641777. The reversal of 125641761 is 167146521.

It is not a de Polignac number, because 125641761 - 2¹³ = 125633569 is a prime.

It is a super-2 number, since 2×125641761² = 31571704214362242, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (125441761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47760 + ... + 50321.

It is an arithmetic number, because the mean of its divisors is an integer number (12162168).

Almost surely, 2^125641761 is an apocalyptic number.

It is an amenable number.

125641761 is a deficient number, since it is larger than the sum of its proper divisors (68952927).

125641761 is an equidigital number, since it uses as much as digits as its factorization.

125641761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98152.

The product of its digits is 10080, while the sum is 33.

The square root of 125641761 is about 11209.0035685604. The cubic root of 125641761 is about 500.8542211148.

The spelling of 125641761 in words is "one hundred twenty-five million, six hundred forty-one thousand, seven hundred sixty-one".