2440523161 has 4 divisors (see below), whose sum is σ = 2440630372. Its totient is φ = 2440415952.

The previous prime is 2440523149. The next prime is 2440523167. The reversal of 2440523161 is 1613250442.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2041322761 + 399200400 = 45181^2 + 19980^2 .

It is a cyclic number.

It is not a de Polignac number, because 2440523161 - 2⁹ = 2440522649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2440523167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4410 + ... + 70003.

It is an arithmetic number, because the mean of its divisors is an integer number (610157593).

Almost surely, 2^2440523161 is an apocalyptic number.

It is an amenable number.

2440523161 is a deficient number, since it is larger than the sum of its proper divisors (107211).

2440523161 is an equidigital number, since it uses as much as digits as its factorization.

2440523161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107210.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 2440523161 is about 49401.6513995231. The cubic root of 2440523161 is about 1346.3593101113.

The spelling of 2440523161 in words is "two billion, four hundred forty million, five hundred twenty-three thousand, one hundred sixty-one".