3621867133 has 2 divisors, whose sum is σ = 3621867134. Its totient is φ = 3621867132.

The previous prime is 3621867121. The next prime is 3621867149. The reversal of 3621867133 is 3317681263.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1952490969 + 1669376164 = 44187^2 + 40858^2 .

It is a cyclic number.

It is not a de Polignac number, because 3621867133 - 2¹³ = 3621858941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3621867163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1810933566 + 1810933567.

It is an arithmetic number, because the mean of its divisors is an integer number (1810933567).

Almost surely, 2^3621867133 is an apocalyptic number.

It is an amenable number.

3621867133 is a deficient number, since it is larger than the sum of its proper divisors (1).

3621867133 is an equidigital number, since it uses as much as digits as its factorization.

3621867133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 40.

The square root of 3621867133 is about 60181.9502259606. The cubic root of 3621867133 is about 1535.7157492042.

The spelling of 3621867133 in words is "three billion, six hundred twenty-one million, eight hundred sixty-seven thousand, one hundred thirty-three".