133164494 has 4 divisors (see below), whose sum is σ = 199746744. Its totient is φ = 66582246.

The previous prime is 133164487. The next prime is 133164523. The reversal of 133164494 is 494461331.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33291122 + ... + 33291125.

It is an arithmetic number, because the mean of its divisors is an integer number (49936686).

Almost surely, 2^133164494 is an apocalyptic number.

133164494 is a deficient number, since it is larger than the sum of its proper divisors (66582250).

133164494 is an equidigital number, since it uses as much as digits as its factorization.

133164494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66582249.

The product of its digits is 31104, while the sum is 35.

The square root of 133164494 is about 11539.6921102775. The cubic root of 133164494 is about 510.6572252214.

The spelling of 133164494 in words is "one hundred thirty-three million, one hundred sixty-four thousand, four hundred ninety-four".