40521103 has 4 divisors (see below), whose sum is σ = 46309840. Its totient is φ = 34732368.

The previous prime is 40521037. The next prime is 40521109. The reversal of 40521103 is 30112504.

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 40521103 - 2²¹ = 38423951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40521109) 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, 2894358 + ... + 2894371.

It is an arithmetic number, because the mean of its divisors is an integer number (11577460).

Almost surely, 2^40521103 is an apocalyptic number.

40521103 is a deficient number, since it is larger than the sum of its proper divisors (5788737).

40521103 is an equidigital number, since it uses as much as digits as its factorization.

40521103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5788736.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 40521103 is about 6365.6188230211. The cubic root of 40521103 is about 343.4739090873.

Adding to 40521103 its reverse (30112504), we get a palindrome (70633607).

The spelling of 40521103 in words is "forty million, five hundred twenty-one thousand, one hundred three".