41145409 has 4 divisors (see below), whose sum is σ = 41160640. Its totient is φ = 41130180.

The previous prime is 41145373. The next prime is 41145449. The reversal of 41145409 is 90454114.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 41145409 - 2¹⁹ = 40621121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41145449) 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, 2349 + ... + 9370.

It is an arithmetic number, because the mean of its divisors is an integer number (10290160).

Almost surely, 2^41145409 is an apocalyptic number.

It is an amenable number.

41145409 is a deficient number, since it is larger than the sum of its proper divisors (15231).

41145409 is a wasteful number, since it uses less digits than its factorization.

41145409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15230.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 41145409 is about 6414.4687231290. The cubic root of 41145409 is about 345.2288868311.

The spelling of 41145409 in words is "forty-one million, one hundred forty-five thousand, four hundred nine".