40231253 has 2 divisors, whose sum is σ = 40231254. Its totient is φ = 40231252.

The previous prime is 40231237. The next prime is 40231297. The reversal of 40231253 is 35213204.

It is a happy number.

40231253 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., 40170244 + 61009 = 6338^2 + 247^2 .

It is a cyclic number.

It is not a de Polignac number, because 40231253 - 2⁴ = 40231237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40231153) 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, 20115626 + 20115627.

It is an arithmetic number, because the mean of its divisors is an integer number (20115627).

Almost surely, 2^40231253 is an apocalyptic number.

It is an amenable number.

40231253 is a deficient number, since it is larger than the sum of its proper divisors (1).

40231253 is an equidigital number, since it uses as much as digits as its factorization.

40231253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 40231253 is about 6342.8111275680. The cubic root of 40231253 is about 342.6529850949.

Adding to 40231253 its reverse (35213204), we get a palindrome (75444457).

The spelling of 40231253 in words is "forty million, two hundred thirty-one thousand, two hundred fifty-three".