33142445 has 16 divisors (see below), whose sum is σ = 46096128. Its totient is φ = 22404480.

The previous prime is 33142423. The next prime is 33142477. The reversal of 33142445 is 54424133.

It is not a de Polignac number, because 33142445 - 2¹⁴ = 33126061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4184 + ... + 9153.

It is an arithmetic number, because the mean of its divisors is an integer number (2881008).

Almost surely, 2^33142445 is an apocalyptic number.

33142445 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

33142445 is a deficient number, since it is larger than the sum of its proper divisors (12953683).

33142445 is a wasteful number, since it uses less digits than its factorization.

33142445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13420.

The product of its digits is 5760, while the sum is 26.

The square root of 33142445 is about 5756.9475418836. The cubic root of 33142445 is about 321.2142828969.

Adding to 33142445 its reverse (54424133), we get a palindrome (87566578).

The spelling of 33142445 in words is "thirty-three million, one hundred forty-two thousand, four hundred forty-five".