125741731 has 4 divisors (see below), whose sum is σ = 125768952. Its totient is φ = 125714512.

The previous prime is 125741729. The next prime is 125741773. The reversal of 125741731 is 137147521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125741731 - 2¹ = 125741729 is a prime.

It is a super-2 number, since 2×125741731² = 31621965829752722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125741693 and 125741702.

It is not an unprimeable number, because it can be changed into a prime (125741531) 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 3 ways as a sum of consecutive naturals, for example, 4765 + ... + 16558.

It is an arithmetic number, because the mean of its divisors is an integer number (31442238).

Almost surely, 2^125741731 is an apocalyptic number.

125741731 is a deficient number, since it is larger than the sum of its proper divisors (27221).

125741731 is an equidigital number, since it uses as much as digits as its factorization.

125741731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27220.

The product of its digits is 5880, while the sum is 31.

The square root of 125741731 is about 11213.4620434547. The cubic root of 125741731 is about 500.9870249481.

The spelling of 125741731 in words is "one hundred twenty-five million, seven hundred forty-one thousand, seven hundred thirty-one".