33145243 has 8 divisors (see below), whose sum is σ = 33504048. Its totient is φ = 32788704.

The previous prime is 33145219. The next prime is 33145247. The reversal of 33145243 is 34254133.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 33145243 - 2¹³ = 33137051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33145247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48621 + ... + 49297.

It is an arithmetic number, because the mean of its divisors is an integer number (4188006).

Almost surely, 2^33145243 is an apocalyptic number.

33145243 is a deficient number, since it is larger than the sum of its proper divisors (358805).

33145243 is a wasteful number, since it uses less digits than its factorization.

33145243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133.

The product of its digits is 4320, while the sum is 25.

The square root of 33145243 is about 5757.1905474806. The cubic root of 33145243 is about 321.2233219833.

Adding to 33145243 its reverse (34254133), we get a palindrome (67399376).

The spelling of 33145243 in words is "thirty-three million, one hundred forty-five thousand, two hundred forty-three".