41220031 has 4 divisors (see below), whose sum is σ = 41235472.
Its totient is φ = 41204592.
The previous prime is 41220013. The next prime is 41220037. The reversal of 41220031 is 13002214.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 41220031 - 27 = 41219903 is a prime.
It is a super-2 number, since 2×412200312 = 3398181911281922, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 41219993 and 41220020.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (41220037) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2571 + ... + 9436.
It is an arithmetic number, because the mean of its divisors is an integer number (10308868).
Almost surely, 241220031 is an apocalyptic number.
41220031 is a deficient number, since it is larger than the sum of its proper divisors (15441).
41220031 is a wasteful number, since it uses less digits than its factorization.
41220031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15440.
The product of its (nonzero) digits is 48, while the sum is 13.
The square root of 41220031 is about 6420.2827819341.
The cubic root of 41220031 is about 345.4374650772.
Adding to 41220031 its reverse (13002214), we get a palindrome (54222245).
The spelling of 41220031 in words is "forty-one million, two hundred twenty thousand, thirty-one".