61371719 has 2 divisors, whose sum is σ = 61371720. Its totient is φ = 61371718.

The previous prime is 61371701. The next prime is 61371731. The reversal of 61371719 is 91717316.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61371719 - 2¹² = 61367623 is a prime.

It is a super-2 number, since 2×61371719² = 7532975786029922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61371119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30685859 + 30685860.

It is an arithmetic number, because the mean of its divisors is an integer number (30685860).

Almost surely, 2^61371719 is an apocalyptic number.

61371719 is a deficient number, since it is larger than the sum of its proper divisors (1).

61371719 is an equidigital number, since it uses as much as digits as its factorization.

61371719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7938, while the sum is 35.

The square root of 61371719 is about 7834.0104033630. The cubic root of 61371719 is about 394.4477011229.

The spelling of 61371719 in words is "sixty-one million, three hundred seventy-one thousand, seven hundred nineteen".