40111453 has 2 divisors, whose sum is σ = 40111454. Its totient is φ = 40111452.

The previous prime is 40111417. The next prime is 40111457. The reversal of 40111453 is 35411104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27594009 + 12517444 = 5253^2 + 3538^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40111453 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40111453.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40111457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20055726 + 20055727.

It is an arithmetic number, because the mean of its divisors is an integer number (20055727).

Almost surely, 2^40111453 is an apocalyptic number.

It is an amenable number.

40111453 is a deficient number, since it is larger than the sum of its proper divisors (1).

40111453 is an equidigital number, since it uses as much as digits as its factorization.

40111453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 40111453 is about 6333.3603245039. The cubic root of 40111453 is about 342.3125313602.

Adding to 40111453 its reverse (35411104), we get a palindrome (75522557).

The spelling of 40111453 in words is "forty million, one hundred eleven thousand, four hundred fifty-three".