133164361 has 4 divisors (see below), whose sum is σ = 145270224. Its totient is φ = 121058500.

The previous prime is 133164307. The next prime is 133164371. The reversal of 133164361 is 163461331.

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, and also an emirpimes, since its reverse is a distinct semiprime: 163461331 = 11 ⋅14860121.

It is a cyclic number.

It is not a de Polignac number, because 133164361 - 2¹¹ = 133162313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133164371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6052915 + ... + 6052936.

It is an arithmetic number, because the mean of its divisors is an integer number (36317556).

Almost surely, 2^133164361 is an apocalyptic number.

133164361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

133164361 is a deficient number, since it is larger than the sum of its proper divisors (12105863).

133164361 is a wasteful number, since it uses less digits than its factorization.

133164361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12105862.

The product of its digits is 3888, while the sum is 28.

The square root of 133164361 is about 11539.6863475573. The cubic root of 133164361 is about 510.6570552126.

The spelling of 133164361 in words is "one hundred thirty-three million, one hundred sixty-four thousand, three hundred sixty-one".