125044403 has 4 divisors (see below), whose sum is σ = 136412088. Its totient is φ = 113676720.

The previous prime is 125044391. The next prime is 125044411. The reversal of 125044403 is 304440521.

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 125044403 - 2²² = 120850099 is a prime.

It is a super-2 number, since 2×125044403² = 31272205443252818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125044463) 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, 5683826 + ... + 5683847.

It is an arithmetic number, because the mean of its divisors is an integer number (34103022).

Almost surely, 2^125044403 is an apocalyptic number.

125044403 is a deficient number, since it is larger than the sum of its proper divisors (11367685).

125044403 is a wasteful number, since it uses less digits than its factorization.

125044403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11367684.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 125044403 is about 11182.3254737107. The cubic root of 125044403 is about 500.0591969912.

Adding to 125044403 its reverse (304440521), we get a palindrome (429484924).

The spelling of 125044403 in words is "one hundred twenty-five million, forty-four thousand, four hundred three".