33140923 has 4 divisors (see below), whose sum is σ = 33482680. Its totient is φ = 32799168.

The previous prime is 33140909. The next prime is 33140927. The reversal of 33140923 is 32904133.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32904133 = 1193 ⋅27581.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33140923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33140927) 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, 170733 + ... + 170926.

It is an arithmetic number, because the mean of its divisors is an integer number (8370670).

Almost surely, 2^33140923 is an apocalyptic number.

33140923 is a deficient number, since it is larger than the sum of its proper divisors (341757).

33140923 is an equidigital number, since it uses as much as digits as its factorization.

33140923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341756.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 33140923 is about 5756.8153522586. The cubic root of 33140923 is about 321.2093657821.

The spelling of 33140923 in words is "thirty-three million, one hundred forty thousand, nine hundred twenty-three".