40113253 has 2 divisors, whose sum is σ = 40113254. Its totient is φ = 40113252.

The previous prime is 40113221. The next prime is 40113257. The reversal of 40113253 is 35231104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38217124 + 1896129 = 6182^2 + 1377^2 .

It is a cyclic number.

It is not a de Polignac number, because 40113253 - 2⁵ = 40113221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40113253.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40113257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20056626 + 20056627.

It is an arithmetic number, because the mean of its divisors is an integer number (20056627).

Almost surely, 2^40113253 is an apocalyptic number.

It is an amenable number.

40113253 is a deficient number, since it is larger than the sum of its proper divisors (1).

40113253 is an equidigital number, since it uses as much as digits as its factorization.

40113253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 40113253 is about 6333.5024275672. The cubic root of 40113253 is about 342.3176517044.

Adding to 40113253 its reverse (35231104), we get a palindrome (75344357).

The spelling of 40113253 in words is "forty million, one hundred thirteen thousand, two hundred fifty-three".