40545203 has 2 divisors, whose sum is σ = 40545204. Its totient is φ = 40545202.

The previous prime is 40545163. The next prime is 40545217. The reversal of 40545203 is 30254504.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40545203 - 2¹⁶ = 40479667 is a prime.

It is a super-2 number, since 2×40545203² = 3287826972622418, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (40545223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20272601 + 20272602.

It is an arithmetic number, because the mean of its divisors is an integer number (20272602).

Almost surely, 2^40545203 is an apocalyptic number.

40545203 is a deficient number, since it is larger than the sum of its proper divisors (1).

40545203 is an equidigital number, since it uses as much as digits as its factorization.

40545203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 40545203 is about 6367.5115233504. The cubic root of 40545203 is about 343.5419895036.

Adding to 40545203 its reverse (30254504), we get a palindrome (70799707).

The spelling of 40545203 in words is "forty million, five hundred forty-five thousand, two hundred three".