40121333 has 4 divisors (see below), whose sum is σ = 45852960. Its totient is φ = 34389708.

The previous prime is 40121327. The next prime is 40121339. The reversal of 40121333 is 33312104.

It is a happy number.

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 an interprime number because it is at equal distance from previous prime (40121327) and next prime (40121339).

It is a cyclic number.

It is not a de Polignac number, because 40121333 - 2⁴ = 40121317 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 (40121339) 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, 2865803 + ... + 2865816.

It is an arithmetic number, because the mean of its divisors is an integer number (11463240).

Almost surely, 2^40121333 is an apocalyptic number.

It is an amenable number.

40121333 is a deficient number, since it is larger than the sum of its proper divisors (5731627).

40121333 is an equidigital number, since it uses as much as digits as its factorization.

40121333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5731626.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 40121333 is about 6334.1402731547. The cubic root of 40121333 is about 342.3406344739.

Adding to 40121333 its reverse (33312104), we get a palindrome (73433437).

The spelling of 40121333 in words is "forty million, one hundred twenty-one thousand, three hundred thirty-three".