133263274 has 4 divisors (see below), whose sum is σ = 199894914. Its totient is φ = 66631636.

The previous prime is 133263269. The next prime is 133263329. The reversal of 133263274 is 472362331.

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

It can be written as a sum of positive squares in only one way, i.e., 93257649 + 40005625 = 9657^2 + 6325^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33315817 + ... + 33315820.

Almost surely, 2^133263274 is an apocalyptic number.

133263274 is a deficient number, since it is larger than the sum of its proper divisors (66631640).

133263274 is an equidigital number, since it uses as much as digits as its factorization.

133263274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66631639.

The product of its digits is 18144, while the sum is 31.

The square root of 133263274 is about 11543.9713270607. The cubic root of 133263274 is about 510.7834607058.

The spelling of 133263274 in words is "one hundred thirty-three million, two hundred sixty-three thousand, two hundred seventy-four".