33452145 has 24 divisors (see below), whose sum is σ = 58332456. Its totient is φ = 17733888.

The previous prime is 33452137. The next prime is 33452149. The reversal of 33452145 is 54125433.

It can be written as a sum of positive squares in 4 ways, for example, as 10036224 + 23415921 = 3168^2 + 4839^2 .

It is not a de Polignac number, because 33452145 - 2³ = 33452137 is a prime.

It is a super-2 number, since 2×33452145² = 2238092010202050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33452149) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5637 + ... + 9933.

It is an arithmetic number, because the mean of its divisors is an integer number (2430519).

Almost surely, 2^33452145 is an apocalyptic number.

It is an amenable number.

33452145 is a deficient number, since it is larger than the sum of its proper divisors (24880311).

33452145 is a wasteful number, since it uses less digits than its factorization.

33452145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4481 (or 4478 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 33452145 is about 5783.7829316115. The cubic root of 33452145 is about 322.2117128074.

Adding to 33452145 its reverse (54125433), we get a palindrome (87577578).

The spelling of 33452145 in words is "thirty-three million, four hundred fifty-two thousand, one hundred forty-five".