40115230249 has 2 divisors, whose sum is σ = 40115230250. Its totient is φ = 40115230248.

The previous prime is 40115230247. The next prime is 40115230273. The reversal of 40115230249 is 94203251104.

40115230249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39987201024 + 128029225 = 199968^2 + 11315^2 .

It is a cyclic number.

It is not a de Polignac number, because 40115230249 - 2¹ = 40115230247 is a prime.

Together with 40115230247, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 40115230249.

It is not a weakly prime, because it can be changed into another prime (40115230247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20057615124 + 20057615125.

It is an arithmetic number, because the mean of its divisors is an integer number (20057615125).

Almost surely, 2^40115230249 is an apocalyptic number.

It is an amenable number.

40115230249 is a deficient number, since it is larger than the sum of its proper divisors (1).

40115230249 is an equidigital number, since it uses as much as digits as its factorization.

40115230249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 40115230249 in words is "forty billion, one hundred fifteen million, two hundred thirty thousand, two hundred forty-nine".