2349181 has 2 divisors, whose sum is σ = 2349182. Its totient is φ = 2349180.

The previous prime is 2349163. The next prime is 2349209. The reversal of 2349181 is 1819432.

It is a happy number.

It is an a-pointer prime, because the next prime (2349209) can be obtained adding 2349181 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2340900 + 8281 = 1530^2 + 91^2 .

It is a cyclic number.

It is not a de Polignac number, because 2349181 - 2²¹ = 252029 is a prime.

It is a super-2 number, since 2×2349181² = 11037302741522, which contains 22 as substring.

2349181 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2349101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1174590 + 1174591.

It is an arithmetic number, because the mean of its divisors is an integer number (1174591).

2^2349181 is an apocalyptic number.

It is an amenable number.

2349181 is a deficient number, since it is larger than the sum of its proper divisors (1).

2349181 is an equidigital number, since it uses as much as digits as its factorization.

2349181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 28.

The square root of 2349181 is about 1532.7038200513. The cubic root of 2349181 is about 132.9348428655.

The spelling of 2349181 in words is "two million, three hundred forty-nine thousand, one hundred eighty-one".