125400869 has 8 divisors (see below), whose sum is σ = 136899840. Its totient is φ = 113918400.

The previous prime is 125400851. The next prime is 125400871. The reversal of 125400869 is 968004521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125400869 is a prime.

It is a super-2 number, since 2×125400869² = 31450755891910322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125400829) 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 7 ways as a sum of consecutive naturals, for example, 16109 + ... + 22589.

It is an arithmetic number, because the mean of its divisors is an integer number (17112480).

Almost surely, 2^125400869 is an apocalyptic number.

It is an amenable number.

125400869 is a deficient number, since it is larger than the sum of its proper divisors (11498971).

125400869 is a wasteful number, since it uses less digits than its factorization.

125400869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8251.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 125400869 is about 11198.2529440980. The cubic root of 125400869 is about 500.5339216524.

The spelling of 125400869 in words is "one hundred twenty-five million, four hundred thousand, eight hundred sixty-nine".