45181831333 has 2 divisors, whose sum is σ = 45181831334. Its totient is φ = 45181831332.

The previous prime is 45181831313. The next prime is 45181831363. The reversal of 45181831333 is 33313818154.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44580944164 + 600887169 = 211142^2 + 24513^2 .

It is a cyclic number.

It is not a de Polignac number, because 45181831333 - 2²¹ = 45179734181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45181831313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22590915666 + 22590915667.

It is an arithmetic number, because the mean of its divisors is an integer number (22590915667).

Almost surely, 2^45181831333 is an apocalyptic number.

It is an amenable number.

45181831333 is a deficient number, since it is larger than the sum of its proper divisors (1).

45181831333 is an equidigital number, since it uses as much as digits as its factorization.

45181831333 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 40.

The spelling of 45181831333 in words is "forty-five billion, one hundred eighty-one million, eight hundred thirty-one thousand, three hundred thirty-three".