61305499 has 2 divisors, whose sum is σ = 61305500. Its totient is φ = 61305498.

The previous prime is 61305481. The next prime is 61305509. The reversal of 61305499 is 99450316.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61305499 - 2⁵ = 61305467 is a prime.

It is not a weakly prime, because it can be changed into another prime (61305479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30652749 + 30652750.

It is an arithmetic number, because the mean of its divisors is an integer number (30652750).

Almost surely, 2^61305499 is an apocalyptic number.

61305499 is a deficient number, since it is larger than the sum of its proper divisors (1).

61305499 is an equidigital number, since it uses as much as digits as its factorization.

61305499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 61305499 is about 7829.7828194657. The cubic root of 61305499 is about 394.3057805585.

The spelling of 61305499 in words is "sixty-one million, three hundred five thousand, four hundred ninety-nine".