133450165 has 4 divisors (see below), whose sum is σ = 160140204. Its totient is φ = 106760128.

The previous prime is 133450151. The next prime is 133450169. The reversal of 133450165 is 561054331.

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

It can be written as a sum of positive squares in 2 ways, for example, as 58644964 + 74805201 = 7658^2 + 8649^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133450165 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133450169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13345012 + ... + 13345021.

It is an arithmetic number, because the mean of its divisors is an integer number (40035051).

Almost surely, 2^133450165 is an apocalyptic number.

It is an amenable number.

133450165 is a deficient number, since it is larger than the sum of its proper divisors (26690039).

133450165 is an equidigital number, since it uses as much as digits as its factorization.

133450165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26690038.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 133450165 is about 11552.0632356302. The cubic root of 133450165 is about 511.0221267145.

The spelling of 133450165 in words is "one hundred thirty-three million, four hundred fifty thousand, one hundred sixty-five".