125150731 has 4 divisors (see below), whose sum is σ = 126320472. Its totient is φ = 123980992.

The previous prime is 125150717. The next prime is 125150743. The reversal of 125150731 is 137051521.

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 125150731 - 2¹³ = 125142539 is a prime.

It is a super-2 number, since 2×125150731² = 31325410939668722, 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 = 125150696 and 125150705.

It is not an unprimeable number, because it can be changed into a prime (125150771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 584710 + ... + 584923.

It is an arithmetic number, because the mean of its divisors is an integer number (31580118).

Almost surely, 2^125150731 is an apocalyptic number.

125150731 is a deficient number, since it is larger than the sum of its proper divisors (1169741).

125150731 is a wasteful number, since it uses less digits than its factorization.

125150731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169740.

The product of its (nonzero) digits is 1050, while the sum is 25.

The square root of 125150731 is about 11187.0787518458. The cubic root of 125150731 is about 500.2008939391.

The spelling of 125150731 in words is "one hundred twenty-five million, one hundred fifty thousand, seven hundred thirty-one".