125801641 has 12 divisors (see below), whose sum is σ = 151741632. Its totient is φ = 102152664.

The previous prime is 125801609. The next prime is 125801647. The reversal of 125801641 is 146108521.

It is not a de Polignac number, because 125801641 - 2⁵ = 125801609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125801647) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 22365 + ... + 27418.

It is an arithmetic number, because the mean of its divisors is an integer number (12645136).

Almost surely, 2^125801641 is an apocalyptic number.

It is an amenable number.

125801641 is a deficient number, since it is larger than the sum of its proper divisors (25939991).

125801641 is an equidigital number, since it uses as much as digits as its factorization.

125801641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49828 (or 49809 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 125801641 is about 11216.1330680409. The cubic root of 125801641 is about 501.0665778722.

The spelling of 125801641 in words is "one hundred twenty-five million, eight hundred one thousand, six hundred forty-one".