125443731 has 16 divisors (see below), whose sum is σ = 202397184. Its totient is φ = 67465344.

The previous prime is 125443699. The next prime is 125443733. The reversal of 125443731 is 137344521.

It is a happy number.

It is not a de Polignac number, because 125443731 - 2⁵ = 125443699 is a prime.

It is a super-3 number, since 3×125443731³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (125443733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175335 + ... + 176048.

It is an arithmetic number, because the mean of its divisors is an integer number (12649824).

Almost surely, 2^125443731 is an apocalyptic number.

125443731 is a deficient number, since it is larger than the sum of its proper divisors (76953453).

125443731 is a wasteful number, since it uses less digits than its factorization.

125443731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351410.

The product of its digits is 10080, while the sum is 30.

The square root of 125443731 is about 11200.1665612615. The cubic root of 125443731 is about 500.5909426318.

The spelling of 125443731 in words is "one hundred twenty-five million, four hundred forty-three thousand, seven hundred thirty-one".