125386761 has 4 divisors (see below), whose sum is σ = 167182352. Its totient is φ = 83591172.

The previous prime is 125386717. The next prime is 125386763. The reversal of 125386761 is 167683521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 167683521 = 3 ⋅55894507.

It is not a de Polignac number, because 125386761 - 2⁶ = 125386697 is a prime.

It is a super-2 number, since 2×125386761² = 31443679668142242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125386763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20897791 + ... + 20897796.

It is an arithmetic number, because the mean of its divisors is an integer number (41795588).

Almost surely, 2^125386761 is an apocalyptic number.

It is an amenable number.

125386761 is a deficient number, since it is larger than the sum of its proper divisors (41795591).

125386761 is an equidigital number, since it uses as much as digits as its factorization.

125386761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41795590.

The product of its digits is 60480, while the sum is 39.

The square root of 125386761 is about 11197.6230066921. The cubic root of 125386761 is about 500.5151503912.

The spelling of 125386761 in words is "one hundred twenty-five million, three hundred eighty-six thousand, seven hundred sixty-one".