33825131 has 2 divisors, whose sum is σ = 33825132. Its totient is φ = 33825130.

The previous prime is 33825119. The next prime is 33825137. The reversal of 33825131 is 13152833.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33825131 is a prime.

It is a super-2 number, since 2×33825131² = 2288278974334322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 33825131.

It is not a weakly prime, because it can be changed into another prime (33825137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16912565 + 16912566.

It is an arithmetic number, because the mean of its divisors is an integer number (16912566).

Almost surely, 2^33825131 is an apocalyptic number.

33825131 is a deficient number, since it is larger than the sum of its proper divisors (1).

33825131 is an equidigital number, since it uses as much as digits as its factorization.

33825131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 26.

The square root of 33825131 is about 5815.9376716055. The cubic root of 33825131 is about 323.4048255370.

Adding to 33825131 its reverse (13152833), we get a palindrome (46977964).

The spelling of 33825131 in words is "thirty-three million, eight hundred twenty-five thousand, one hundred thirty-one".