133970378 has 4 divisors (see below), whose sum is σ = 200955570. Its totient is φ = 66985188.

The previous prime is 133970341. The next prime is 133970381. The reversal of 133970378 is 873079331.

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., 122389969 + 11580409 = 11063^2 + 3403^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33492593 + ... + 33492596.

Almost surely, 2^133970378 is an apocalyptic number.

133970378 is a deficient number, since it is larger than the sum of its proper divisors (66985192).

133970378 is an equidigital number, since it uses as much as digits as its factorization.

133970378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66985191.

The product of its (nonzero) digits is 95256, while the sum is 41.

The square root of 133970378 is about 11574.5573565472. The cubic root of 133970378 is about 511.6852848015.

It can be divided in two parts, 1339 and 70378, that added together give a palindrome (71717).

The spelling of 133970378 in words is "one hundred thirty-three million, nine hundred seventy thousand, three hundred seventy-eight".