2240431181 has 2 divisors, whose sum is σ = 2240431182. Its totient is φ = 2240431180.

The previous prime is 2240431153. The next prime is 2240431223. The reversal of 2240431181 is 1811340422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1284075556 + 956355625 = 35834^2 + 30925^2 .

It is a cyclic number.

It is not a de Polignac number, because 2240431181 - 2⁶ = 2240431117 is a prime.

It is a super-2 number, since 2×2240431181² = 10039063753594109522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2240431181.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2240431121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1120215590 + 1120215591.

It is an arithmetic number, because the mean of its divisors is an integer number (1120215591).

Almost surely, 2^2240431181 is an apocalyptic number.

It is an amenable number.

2240431181 is a deficient number, since it is larger than the sum of its proper divisors (1).

2240431181 is an equidigital number, since it uses as much as digits as its factorization.

2240431181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 2240431181 is about 47333.1932263185. The cubic root of 2240431181 is about 1308.5104723584.

The spelling of 2240431181 in words is "two billion, two hundred forty million, four hundred thirty-one thousand, one hundred eighty-one".