249441133 has 2 divisors, whose sum is σ = 249441134. Its totient is φ = 249441132.

The previous prime is 249441121. The next prime is 249441163. The reversal of 249441133 is 331144942.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 228674884 + 20766249 = 15122^2 + 4557^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-249441133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 249441095 and 249441104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (249441163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124720566 + 124720567.

It is an arithmetic number, because the mean of its divisors is an integer number (124720567).

Almost surely, 2^249441133 is an apocalyptic number.

It is an amenable number.

249441133 is a deficient number, since it is larger than the sum of its proper divisors (1).

249441133 is an equidigital number, since it uses as much as digits as its factorization.

249441133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 31.

The square root of 249441133 is about 15793.7054866804. The cubic root of 249441133 is about 629.4907558572.

The spelling of 249441133 in words is "two hundred forty-nine million, four hundred forty-one thousand, one hundred thirty-three".