41991031 has 8 divisors (see below), whose sum is σ = 44114400. Its totient is φ = 39892512.

The previous prime is 41991029. The next prime is 41991049. The reversal of 41991031 is 13019914.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 41991031 - 2¹ = 41991029 is a prime.

It is a super-2 number, since 2×41991031² = 3526493368885922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41991731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2700 + ... + 9553.

It is an arithmetic number, because the mean of its divisors is an integer number (5514300).

Almost surely, 2^41991031 is an apocalyptic number.

41991031 is a deficient number, since it is larger than the sum of its proper divisors (2123369).

41991031 is a wasteful number, since it uses less digits than its factorization.

41991031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12425.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 41991031 is about 6480.0486880887. The cubic root of 41991031 is about 347.5779194867.

The spelling of 41991031 in words is "forty-one million, nine hundred ninety-one thousand, thirty-one".