33816157 has 2 divisors, whose sum is σ = 33816158. Its totient is φ = 33816156.

The previous prime is 33816149. The next prime is 33816161. The reversal of 33816157 is 75161833.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31236921 + 2579236 = 5589^2 + 1606^2 .

It is an emirp because it is prime and its reverse (75161833) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33816157 - 2³ = 33816149 is a prime.

It is a super-2 number, since 2×33816157² = 2287064948497298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33816127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16908078 + 16908079.

It is an arithmetic number, because the mean of its divisors is an integer number (16908079).

Almost surely, 2^33816157 is an apocalyptic number.

It is an amenable number.

33816157 is a deficient number, since it is larger than the sum of its proper divisors (1).

33816157 is an equidigital number, since it uses as much as digits as its factorization.

33816157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 34.

The square root of 33816157 is about 5815.1661197252. The cubic root of 33816157 is about 323.3762226263.

The spelling of 33816157 in words is "thirty-three million, eight hundred sixteen thousand, one hundred fifty-seven".