33145542 has 24 divisors (see below), whose sum is σ = 71960616. Its totient is φ = 11026176.

The previous prime is 33145531. The next prime is 33145549. The reversal of 33145542 is 24554133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33145549) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8998 + ... + 12134.

It is an arithmetic number, because the mean of its divisors is an integer number (2998359).

Almost surely, 2^33145542 is an apocalyptic number.

33145542 is an abundant number, since it is smaller than the sum of its proper divisors (38815074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33145542 is a wasteful number, since it uses less digits than its factorization.

33145542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3732 (or 3729 counting only the distinct ones).

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

The square root of 33145542 is about 5757.2165149489. The cubic root of 33145542 is about 321.2242878885.

Adding to 33145542 its reverse (24554133), we get a palindrome (57699675).

The spelling of 33145542 in words is "thirty-three million, one hundred forty-five thousand, five hundred forty-two".