33157963 has 2 divisors, whose sum is σ = 33157964. Its totient is φ = 33157962.

The previous prime is 33157961. The next prime is 33157967. The reversal of 33157963 is 36975133.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 33157963 - 2¹ = 33157961 is a prime.

Together with 33157961, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (33157961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16578981 + 16578982.

It is an arithmetic number, because the mean of its divisors is an integer number (16578982).

Almost surely, 2^33157963 is an apocalyptic number.

33157963 is a deficient number, since it is larger than the sum of its proper divisors (1).

33157963 is an equidigital number, since it uses as much as digits as its factorization.

33157963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51030, while the sum is 37.

The square root of 33157963 is about 5758.2951470031. The cubic root of 33157963 is about 321.2644082018.

The spelling of 33157963 in words is "thirty-three million, one hundred fifty-seven thousand, nine hundred sixty-three".