402000133 has 4 divisors (see below), whose sum is σ = 402523660. Its totient is φ = 401476608.

The previous prime is 402000127. The next prime is 402000161. The reversal of 402000133 is 331000204.

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 301960129 + 100040004 = 17377^2 + 10002^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402000133 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 (402000113) 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, 260610 + ... + 262147.

It is an arithmetic number, because the mean of its divisors is an integer number (100630915).

Almost surely, 2^402000133 is an apocalyptic number.

It is an amenable number.

402000133 is a deficient number, since it is larger than the sum of its proper divisors (523527).

402000133 is an equidigital number, since it uses as much as digits as its factorization.

402000133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523526.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 402000133 is about 20049.9409724817. The cubic root of 402000133 is about 738.0323506014.

Adding to 402000133 its reverse (331000204), we get a palindrome (733000337).

The spelling of 402000133 in words is "four hundred two million, one hundred thirty-three", and thus it is an aban number.