415145203 has 4 divisors (see below), whose sum is σ = 452885688. Its totient is φ = 377404720.

The previous prime is 415145183. The next prime is 415145257. The reversal of 415145203 is 302541514.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-415145203 is a prime.

It is a super-2 number, since 2×415145203² = 344691079147822418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (415145603) 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, 18870226 + ... + 18870247.

It is an arithmetic number, because the mean of its divisors is an integer number (113221422).

Almost surely, 2^415145203 is an apocalyptic number.

415145203 is a deficient number, since it is larger than the sum of its proper divisors (37740485).

415145203 is a wasteful number, since it uses less digits than its factorization.

415145203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37740484.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 415145203 is about 20375.1123432486. The cubic root of 415145203 is about 745.9905763723.

Adding to 415145203 its reverse (302541514), we get a palindrome (717686717).

The spelling of 415145203 in words is "four hundred fifteen million, one hundred forty-five thousand, two hundred three".