40545345031 has 2 divisors, whose sum is σ = 40545345032. Its totient is φ = 40545345030.

The previous prime is 40545345017. The next prime is 40545345053. The reversal of 40545345031 is 13054354504.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40545345031 - 2¹⁵ = 40545312263 is a prime.

It is a super-2 number, since 2×40545345031² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40545345091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20272672515 + 20272672516.

It is an arithmetic number, because the mean of its divisors is an integer number (20272672516).

Almost surely, 2^40545345031 is an apocalyptic number.

40545345031 is a deficient number, since it is larger than the sum of its proper divisors (1).

40545345031 is an equidigital number, since it uses as much as digits as its factorization.

40545345031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72000, while the sum is 34.

Adding to 40545345031 its reverse (13054354504), we get a palindrome (53599699535).

The spelling of 40545345031 in words is "forty billion, five hundred forty-five million, three hundred forty-five thousand, thirty-one".