133780274 has 4 divisors (see below), whose sum is σ = 200670414. Its totient is φ = 66890136.

The previous prime is 133780243. The next prime is 133780279. The reversal of 133780274 is 472087331.

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., 123054649 + 10725625 = 11093^2 + 3275^2 .

It is not an unprimeable number, because it can be changed into a prime (133780279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33445067 + ... + 33445070.

Almost surely, 2^133780274 is an apocalyptic number.

133780274 is a deficient number, since it is larger than the sum of its proper divisors (66890140).

133780274 is an equidigital number, since it uses as much as digits as its factorization.

133780274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66890139.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 133780274 is about 11566.3422913210. The cubic root of 133780274 is about 511.4431430498.

The spelling of 133780274 in words is "one hundred thirty-three million, seven hundred eighty thousand, two hundred seventy-four".