133164286 has 4 divisors (see below), whose sum is σ = 199746432. Its totient is φ = 66582142.

The previous prime is 133164277. The next prime is 133164307. The reversal of 133164286 is 682461331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 682461331 = 10771 ⋅63361.

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, 33291070 + ... + 33291073.

It is an arithmetic number, because the mean of its divisors is an integer number (49936608).

Almost surely, 2^133164286 is an apocalyptic number.

133164286 is a deficient number, since it is larger than the sum of its proper divisors (66582146).

133164286 is an equidigital number, since it uses as much as digits as its factorization.

133164286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66582145.

The product of its digits is 20736, while the sum is 34.

The square root of 133164286 is about 11539.6830979018. The cubic root of 133164286 is about 510.6569593428.

The spelling of 133164286 in words is "one hundred thirty-three million, one hundred sixty-four thousand, two hundred eighty-six".