61457233 has 2 divisors, whose sum is σ = 61457234. Its totient is φ = 61457232.

The previous prime is 61457213. The next prime is 61457243. The reversal of 61457233 is 33275416.

61457233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37368769 + 24088464 = 6113^2 + 4908^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61457233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61457195 and 61457204.

It is not a weakly prime, because it can be changed into another prime (61457203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30728616 + 30728617.

It is an arithmetic number, because the mean of its divisors is an integer number (30728617).

Almost surely, 2^61457233 is an apocalyptic number.

It is an amenable number.

61457233 is a deficient number, since it is larger than the sum of its proper divisors (1).

61457233 is an equidigital number, since it uses as much as digits as its factorization.

61457233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 31.

The square root of 61457233 is about 7839.4663721455. The cubic root of 61457233 is about 394.6308210072.

The spelling of 61457233 in words is "sixty-one million, four hundred fifty-seven thousand, two hundred thirty-three".