33140023 has 12 divisors (see below), whose sum is σ = 39796032. Its totient is φ = 27488160.

The previous prime is 33140017. The next prime is 33140027. The reversal of 33140023 is 32004133.

It is not a de Polignac number, because 33140023 - 2¹³ = 33131831 is a prime.

It is a super-2 number, since 2×33140023² = 2196522248881058, 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 = 33139979 and 33140006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33140027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9390 + ... + 12427.

It is an arithmetic number, because the mean of its divisors is an integer number (3316336).

Almost surely, 2^33140023 is an apocalyptic number.

33140023 is a deficient number, since it is larger than the sum of its proper divisors (6656009).

33140023 is a wasteful number, since it uses less digits than its factorization.

33140023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21862 (or 21855 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 33140023 is about 5756.7371835094. The cubic root of 33140023 is about 321.2064580875.

Adding to 33140023 its reverse (32004133), we get a palindrome (65144156).

The spelling of 33140023 in words is "thirty-three million, one hundred forty thousand, twenty-three".