125040004 has 12 divisors (see below), whose sum is σ = 220828300. Its totient is φ = 61946208.

The previous prime is 125039989. The next prime is 125040011. The reversal of 125040004 is 400040521.

It can be written as a sum of positive squares in 2 ways, for example, as 31337604 + 93702400 = 5598^2 + 9680^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 125040004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142959 + ... + 143830.

Almost surely, 2^125040004 is an apocalyptic number.

It is an amenable number.

125040004 is a deficient number, since it is larger than the sum of its proper divisors (95788296).

125040004 is a wasteful number, since it uses less digits than its factorization.

125040004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286902 (or 286900 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 125040004 is about 11182.1287776523. The cubic root of 125040004 is about 500.0533329777.

Adding to 125040004 its reverse (400040521), we get a palindrome (525080525).

It can be divided in two parts, 1250 and 40004, that multiplied together give a triangular number (50005000 = T₁₀₀₀₀).

The spelling of 125040004 in words is "one hundred twenty-five million, forty thousand, four".