133252246 has 4 divisors (see below), whose sum is σ = 199878372. Its totient is φ = 66626122.

The previous prime is 133252241. The next prime is 133252253. The reversal of 133252246 is 642252331.

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

It is a super-2 number, since 2×133252246² = 35512322128089032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133252241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33313060 + ... + 33313063.

It is an arithmetic number, because the mean of its divisors is an integer number (49969593).

Almost surely, 2^133252246 is an apocalyptic number.

133252246 is a deficient number, since it is larger than the sum of its proper divisors (66626126).

133252246 is an equidigital number, since it uses as much as digits as its factorization.

133252246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66626125.

The product of its digits is 8640, while the sum is 28.

The square root of 133252246 is about 11543.4936652644. The cubic root of 133252246 is about 510.7693706138.

The spelling of 133252246 in words is "one hundred thirty-three million, two hundred fifty-two thousand, two hundred forty-six".