40875091 has 4 divisors (see below), whose sum is σ = 40888384. Its totient is φ = 40861800.

The previous prime is 40875083. The next prime is 40875139. The reversal of 40875091 is 19057804.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 40875091 - 2³ = 40875083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40875001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 601 + ... + 9061.

It is an arithmetic number, because the mean of its divisors is an integer number (10222096).

Almost surely, 2^40875091 is an apocalyptic number.

40875091 is a deficient number, since it is larger than the sum of its proper divisors (13293).

40875091 is an equidigital number, since it uses as much as digits as its factorization.

40875091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13292.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 40875091 is about 6393.3630430314. The cubic root of 40875091 is about 344.4711943576.

The spelling of 40875091 in words is "forty million, eight hundred seventy-five thousand, ninety-one".