40145353 has 2 divisors, whose sum is σ = 40145354. Its totient is φ = 40145352.

The previous prime is 40145321. The next prime is 40145363. The reversal of 40145353 is 35354104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35141184 + 5004169 = 5928^2 + 2237^2 .

It is a cyclic number.

It is not a de Polignac number, because 40145353 - 2⁵ = 40145321 is a prime.

It is a super-2 number, since 2×40145353² = 3223298734989218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40145363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20072676 + 20072677.

It is an arithmetic number, because the mean of its divisors is an integer number (20072677).

Almost surely, 2^40145353 is an apocalyptic number.

It is an amenable number.

40145353 is a deficient number, since it is larger than the sum of its proper divisors (1).

40145353 is an equidigital number, since it uses as much as digits as its factorization.

40145353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 40145353 is about 6336.0360636600. The cubic root of 40145353 is about 342.4089387979.

Adding to 40145353 its reverse (35354104), we get a palindrome (75499457).

It can be divided in two parts, 401 and 45353, that added together give a palindrome (45754).

The spelling of 40145353 in words is "forty million, one hundred forty-five thousand, three hundred fifty-three".