133770697 has 4 divisors (see below), whose sum is σ = 140811280. Its totient is φ = 126730116.

The previous prime is 133770667. The next prime is 133770713. The reversal of 133770697 is 796077331.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133770697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133770607) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 3520263 + ... + 3520300.

It is an arithmetic number, because the mean of its divisors is an integer number (35202820).

Almost surely, 2^133770697 is an apocalyptic number.

It is an amenable number.

133770697 is a deficient number, since it is larger than the sum of its proper divisors (7040583).

133770697 is an equidigital number, since it uses as much as digits as its factorization.

133770697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7040582.

The product of its (nonzero) digits is 166698, while the sum is 43.

The square root of 133770697 is about 11565.9282809466. The cubic root of 133770697 is about 511.4309384407.

The spelling of 133770697 in words is "one hundred thirty-three million, seven hundred seventy thousand, six hundred ninety-seven".