33149423 has 2 divisors, whose sum is σ = 33149424. Its totient is φ = 33149422.

The previous prime is 33149401. The next prime is 33149437. The reversal of 33149423 is 32494133.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 33149423 - 2⁶ = 33149359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33149023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16574711 + 16574712.

It is an arithmetic number, because the mean of its divisors is an integer number (16574712).

Almost surely, 2^33149423 is an apocalyptic number.

33149423 is a deficient number, since it is larger than the sum of its proper divisors (1).

33149423 is an equidigital number, since it uses as much as digits as its factorization.

33149423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 29.

The square root of 33149423 is about 5757.5535603240. The cubic root of 33149423 is about 321.2368247459.

The spelling of 33149423 in words is "thirty-three million, one hundred forty-nine thousand, four hundred twenty-three".