40535121 has 12 divisors (see below), whose sum is σ = 59407376. Its totient is φ = 24566520.

The previous prime is 40535083. The next prime is 40535129. The reversal of 40535121 is 12153504.

It is not a de Polignac number, because 40535121 - 2¹⁹ = 40010833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40535129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55471 + ... + 56196.

Almost surely, 2^40535121 is an apocalyptic number.

It is an amenable number.

40535121 is a deficient number, since it is larger than the sum of its proper divisors (18872255).

40535121 is a wasteful number, since it uses less digits than its factorization.

40535121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111692 (or 111681 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 40535121 is about 6366.7197990802. The cubic root of 40535121 is about 343.5135120085.

Adding to 40535121 its reverse (12153504), we get a palindrome (52688625).

The spelling of 40535121 in words is "forty million, five hundred thirty-five thousand, one hundred twenty-one".