40245311 has 2 divisors, whose sum is σ = 40245312. Its totient is φ = 40245310.

The previous prime is 40245281. The next prime is 40245319. The reversal of 40245311 is 11354204.

40245311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40245311 - 2¹⁴ = 40228927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40245319) 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, 20122655 + 20122656.

It is an arithmetic number, because the mean of its divisors is an integer number (20122656).

Almost surely, 2^40245311 is an apocalyptic number.

40245311 is a deficient number, since it is larger than the sum of its proper divisors (1).

40245311 is an equidigital number, since it uses as much as digits as its factorization.

40245311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 40245311 is about 6343.9192144919. The cubic root of 40245311 is about 342.6928915055.

Adding to 40245311 its reverse (11354204), we get a palindrome (51599515).

The spelling of 40245311 in words is "forty million, two hundred forty-five thousand, three hundred eleven".