133415222 has 4 divisors (see below), whose sum is σ = 200122836. Its totient is φ = 66707610.

The previous prime is 133415221. The next prime is 133415251. The reversal of 133415222 is 222514331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 222514331 = 13 ⋅17116487.

It is a super-2 number, since 2×133415222² = 35599242922618568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133415221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33353804 + ... + 33353807.

It is an arithmetic number, because the mean of its divisors is an integer number (50030709).

Almost surely, 2^133415222 is an apocalyptic number.

133415222 is a deficient number, since it is larger than the sum of its proper divisors (66707614).

133415222 is an equidigital number, since it uses as much as digits as its factorization.

133415222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66707613.

The product of its digits is 1440, while the sum is 23.

The square root of 133415222 is about 11550.5507228011. The cubic root of 133415222 is about 510.9775202879.

Adding to 133415222 its reverse (222514331), we get a palindrome (355929553).

The spelling of 133415222 in words is "one hundred thirty-three million, four hundred fifteen thousand, two hundred twenty-two".