1665307133 has 8 divisors (see below), whose sum is σ = 1914605952. Its totient is φ = 1418857776.

The previous prime is 1665307129. The next prime is 1665307159. The reversal of 1665307133 is 3317035661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1665307133 - 2² = 1665307129 is a prime.

It is a super-3 number, since 3×1665307133³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1665307093 and 1665307102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1665307183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 711110 + ... + 713447.

It is an arithmetic number, because the mean of its divisors is an integer number (239325744).

Almost surely, 2^1665307133 is an apocalyptic number.

It is an amenable number.

1665307133 is a deficient number, since it is larger than the sum of its proper divisors (249298819).

1665307133 is a wasteful number, since it uses less digits than its factorization.

1665307133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1424731.

The product of its (nonzero) digits is 34020, while the sum is 35.

The square root of 1665307133 is about 40808.1748305410. The cubic root of 1665307133 is about 1185.3086327196.

The spelling of 1665307133 in words is "one billion, six hundred sixty-five million, three hundred seven thousand, one hundred thirty-three".