33313142 has 4 divisors (see below), whose sum is σ = 49969716. Its totient is φ = 16656570.

The previous prime is 33313123. The next prime is 33313201. The reversal of 33313142 is 24131333.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×33313142² = 2219530859824328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8328284 + ... + 8328287.

It is an arithmetic number, because the mean of its divisors is an integer number (12492429).

Almost surely, 2^33313142 is an apocalyptic number.

33313142 is a deficient number, since it is larger than the sum of its proper divisors (16656574).

33313142 is a wasteful number, since it uses less digits than its factorization.

33313142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16656573.

The product of its digits is 648, while the sum is 20.

The square root of 33313142 is about 5771.7538062533. The cubic root of 33313142 is about 321.7648000168.

Adding to 33313142 its reverse (24131333), we get a palindrome (57444475).

The spelling of 33313142 in words is "thirty-three million, three hundred thirteen thousand, one hundred forty-two".