4090531 has 2 divisors, whose sum is σ = 4090532. Its totient is φ = 4090530.

The previous prime is 4090519. The next prime is 4090553. The reversal of 4090531 is 1350904.

It is an a-pointer prime, because the next prime (4090553) can be obtained adding 4090531 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4090531 - 2⁷ = 4090403 is a prime.

It is a super-3 number, since 3×4090531³ (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4090511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2045265 + 2045266.

It is an arithmetic number, because the mean of its divisors is an integer number (2045266).

Almost surely, 2^4090531 is an apocalyptic number.

4090531 is a deficient number, since it is larger than the sum of its proper divisors (1).

4090531 is an equidigital number, since it uses as much as digits as its factorization.

4090531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 4090531 is about 2022.5061186558. The cubic root of 4090531 is about 159.9287573452.

The spelling of 4090531 in words is "four million, ninety thousand, five hundred thirty-one".