61297333 has 2 divisors, whose sum is σ = 61297334. Its totient is φ = 61297332.

The previous prime is 61297331. The next prime is 61297361. The reversal of 61297333 is 33379216.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61105489 + 191844 = 7817^2 + 438^2 .

It is a cyclic number.

It is not a de Polignac number, because 61297333 - 2¹ = 61297331 is a prime.

Together with 61297331, 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 (61297331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30648666 + 30648667.

It is an arithmetic number, because the mean of its divisors is an integer number (30648667).

Almost surely, 2^61297333 is an apocalyptic number.

It is an amenable number.

61297333 is a deficient number, since it is larger than the sum of its proper divisors (1).

61297333 is an equidigital number, since it uses as much as digits as its factorization.

61297333 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20412, while the sum is 34.

The square root of 61297333 is about 7829.2613316966. The cubic root of 61297333 is about 394.2882723739.

The spelling of 61297333 in words is "sixty-one million, two hundred ninety-seven thousand, three hundred thirty-three".