133690773 has 4 divisors (see below), whose sum is σ = 178254368. Its totient is φ = 89127180.

The previous prime is 133690759. The next prime is 133690793. The reversal of 133690773 is 377096331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 133690773 - 2¹⁴ = 133674389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133690723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22281793 + ... + 22281798.

It is an arithmetic number, because the mean of its divisors is an integer number (44563592).

Almost surely, 2^133690773 is an apocalyptic number.

It is an amenable number.

133690773 is a deficient number, since it is larger than the sum of its proper divisors (44563595).

133690773 is an equidigital number, since it uses as much as digits as its factorization.

133690773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44563594.

The product of its (nonzero) digits is 71442, while the sum is 39.

The square root of 133690773 is about 11562.4726161838. The cubic root of 133690773 is about 511.3290632403.

The spelling of 133690773 in words is "one hundred thirty-three million, six hundred ninety thousand, seven hundred seventy-three".