41121791 has 4 divisors (see below), whose sum is σ = 41642400. Its totient is φ = 40601184.

The previous prime is 41121781. The next prime is 41121809. The reversal of 41121791 is 19712114.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41121791 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 41121791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41121721) 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, 260186 + ... + 260343.

It is an arithmetic number, because the mean of its divisors is an integer number (10410600).

Almost surely, 2^41121791 is an apocalyptic number.

41121791 is a deficient number, since it is larger than the sum of its proper divisors (520609).

41121791 is an equidigital number, since it uses as much as digits as its factorization.

41121791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520608.

The product of its digits is 504, while the sum is 26.

The square root of 41121791 is about 6412.6274646201. The cubic root of 41121791 is about 345.1628188975.

The spelling of 41121791 in words is "forty-one million, one hundred twenty-one thousand, seven hundred ninety-one".