133164455 has 4 divisors (see below), whose sum is σ = 159797352. Its totient is φ = 106531560.

The previous prime is 133164439. The next prime is 133164463. The reversal of 133164455 is 554461331.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 133164455 - 2⁴ = 133164439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13316441 + ... + 13316450.

It is an arithmetic number, because the mean of its divisors is an integer number (39949338).

Almost surely, 2^133164455 is an apocalyptic number.

133164455 is a deficient number, since it is larger than the sum of its proper divisors (26632897).

133164455 is an equidigital number, since it uses as much as digits as its factorization.

133164455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26632896.

The product of its digits is 21600, while the sum is 32.

The square root of 133164455 is about 11539.6904204576. The cubic root of 133164455 is about 510.6571753692.

It can be divided in two parts, 13316 and 4455, that added together give a palindrome (17771).

The spelling of 133164455 in words is "one hundred thirty-three million, one hundred sixty-four thousand, four hundred fifty-five".