33182121 has 16 divisors (see below), whose sum is σ = 52195328. Its totient is φ = 18349200.

The previous prime is 33182117. The next prime is 33182129. The reversal of 33182121 is 12128133.

It is not a de Polignac number, because 33182121 - 2² = 33182117 is a prime.

It is a super-2 number, since 2×33182121² = 2202106308117282, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33182129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24835 + ... + 26136.

It is an arithmetic number, because the mean of its divisors is an integer number (3262208).

Almost surely, 2^33182121 is an apocalyptic number.

33182121 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

33182121 is a deficient number, since it is larger than the sum of its proper divisors (19013207).

33182121 is a wasteful number, since it uses less digits than its factorization.

33182121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51012.

The product of its digits is 288, while the sum is 21.

The square root of 33182121 is about 5760.3924345482. The cubic root of 33182121 is about 321.3424107969.

The spelling of 33182121 in words is "thirty-three million, one hundred eighty-two thousand, one hundred twenty-one".