133664151 has 4 divisors (see below), whose sum is σ = 178218872. Its totient is φ = 89109432.

The previous prime is 133664137. The next prime is 133664159. The reversal of 133664151 is 151466331.

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

It is not a de Polignac number, because 133664151 - 2¹³ = 133655959 is a prime.

It is a super-2 number, since 2×133664151² = 35732210525101602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133664159) 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, 22277356 + ... + 22277361.

It is an arithmetic number, because the mean of its divisors is an integer number (44554718).

Almost surely, 2^133664151 is an apocalyptic number.

133664151 is a deficient number, since it is larger than the sum of its proper divisors (44554721).

133664151 is an equidigital number, since it uses as much as digits as its factorization.

133664151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44554720.

The product of its digits is 6480, while the sum is 30.

The square root of 133664151 is about 11561.3213345188. The cubic root of 133664151 is about 511.2951204690.

The spelling of 133664151 in words is "one hundred thirty-three million, six hundred sixty-four thousand, one hundred fifty-one".