33142530 has 16 divisors (see below), whose sum is σ = 79542144. Its totient is φ = 8838000.

The previous prime is 33142493. The next prime is 33142547. The reversal of 33142530 is 3524133.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 33142497 and 33142506.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 552346 + ... + 552405.

It is an arithmetic number, because the mean of its divisors is an integer number (4971384).

Almost surely, 2^33142530 is an apocalyptic number.

33142530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

33142530 is an abundant number, since it is smaller than the sum of its proper divisors (46399614).

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

33142530 is a wasteful number, since it uses less digits than its factorization.

33142530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104761.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 33142530 is about 5756.9549242633. The cubic root of 33142530 is about 321.2145575014.

Adding to 33142530 its reverse (3524133), we get a palindrome (36666663).

The spelling of 33142530 in words is "thirty-three million, one hundred forty-two thousand, five hundred thirty".