3666133 has 4 divisors (see below), whose sum is σ = 3716428. Its totient is φ = 3615840.

The previous prime is 3666127. The next prime is 3666139. The reversal of 3666133 is 3316663.

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

It is an interprime number because it is at equal distance from previous prime (3666127) and next prime (3666139).

It can be written as a sum of positive squares in 2 ways, for example, as 1238769 + 2427364 = 1113^2 + 1558^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3666133 is a prime.

It is an Ulam number.

It is a Duffinian number.

3666133 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3666139) 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, 25038 + ... + 25183.

It is an arithmetic number, because the mean of its divisors is an integer number (929107).

Almost surely, 2^3666133 is an apocalyptic number.

It is an amenable number.

3666133 is a deficient number, since it is larger than the sum of its proper divisors (50295).

3666133 is an equidigital number, since it uses as much as digits as its factorization.

3666133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50294.

The product of its digits is 5832, while the sum is 28.

The square root of 3666133 is about 1914.7148612783. The cubic root of 3666133 is about 154.1946854683.

It can be divided in two parts, 3666 and 133, that multiplied together give a triangular number (487578 = T₉₈₇).

The spelling of 3666133 in words is "three million, six hundred sixty-six thousand, one hundred thirty-three".