125432403 has 4 divisors (see below), whose sum is σ = 167243208. Its totient is φ = 83621600.

The previous prime is 125432401. The next prime is 125432413. The reversal of 125432403 is 304234521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 304234521 = 3 ⋅101411507.

It is a cyclic number.

It is not a de Polignac number, because 125432403 - 2¹ = 125432401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125432401) 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 3 ways as a sum of consecutive naturals, for example, 20905398 + ... + 20905403.

It is an arithmetic number, because the mean of its divisors is an integer number (41810802).

Almost surely, 2^125432403 is an apocalyptic number.

125432403 is a deficient number, since it is larger than the sum of its proper divisors (41810805).

125432403 is an equidigital number, since it uses as much as digits as its factorization.

125432403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41810804.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 125432403 is about 11199.6608430791. The cubic root of 125432403 is about 500.5758738174.

Adding to 125432403 its reverse (304234521), we get a palindrome (429666924).

The spelling of 125432403 in words is "one hundred twenty-five million, four hundred thirty-two thousand, four hundred three".