61475719 has 2 divisors, whose sum is σ = 61475720. Its totient is φ = 61475718.

The previous prime is 61475663. The next prime is 61475731. The reversal of 61475719 is 91757416.

61475719 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 is a cyclic number.

It is not a de Polignac number, because 61475719 - 2⁷ = 61475591 is a prime.

It is a super-2 number, since 2×61475719² = 7558528053133922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61475749) 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, 30737859 + 30737860.

It is an arithmetic number, because the mean of its divisors is an integer number (30737860).

Almost surely, 2^61475719 is an apocalyptic number.

61475719 is a deficient number, since it is larger than the sum of its proper divisors (1).

61475719 is an equidigital number, since it uses as much as digits as its factorization.

61475719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52920, while the sum is 40.

The square root of 61475719 is about 7840.6453178294. The cubic root of 61475719 is about 394.6703846391.

The spelling of 61475719 in words is "sixty-one million, four hundred seventy-five thousand, seven hundred nineteen".