33148261 has 2 divisors, whose sum is σ = 33148262. Its totient is φ = 33148260.

The previous prime is 33148259. The next prime is 33148289. The reversal of 33148261 is 16284133.

It is an a-pointer prime, because the next prime (33148289) can be obtained adding 33148261 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24940036 + 8208225 = 4994^2 + 2865^2 .

It is a cyclic number.

It is not a de Polignac number, because 33148261 - 2¹ = 33148259 is a prime.

Together with 33148259, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33148201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16574130 + 16574131.

It is an arithmetic number, because the mean of its divisors is an integer number (16574131).

Almost surely, 2^33148261 is an apocalyptic number.

It is an amenable number.

33148261 is a deficient number, since it is larger than the sum of its proper divisors (1).

33148261 is an equidigital number, since it uses as much as digits as its factorization.

33148261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 28.

The square root of 33148261 is about 5757.4526485243. The cubic root of 33148261 is about 321.2330712211.

The spelling of 33148261 in words is "thirty-three million, one hundred forty-eight thousand, two hundred sixty-one".