125404434 has 12 divisors (see below), whose sum is σ = 271709646. Its totient is φ = 41801472.

The previous prime is 125404423. The next prime is 125404453. The reversal of 125404434 is 434404521.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 112466025 + 12938409 = 10605^2 + 3597^2 .

It is a junction number, because it is equal to n+sod(n) for n = 125404398 and 125404407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3483439 + ... + 3483474.

Almost surely, 2^125404434 is an apocalyptic number.

125404434 is an abundant number, since it is smaller than the sum of its proper divisors (146305212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125404434 is a wasteful number, since it uses less digits than its factorization.

125404434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6966921 (or 6966918 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 125404434 is about 11198.4121195820. The cubic root of 125404434 is about 500.5386648054.

Adding to 125404434 its reverse (434404521), we get a palindrome (559808955).

The spelling of 125404434 in words is "one hundred twenty-five million, four hundred four thousand, four hundred thirty-four".