136961719 has 2 divisors, whose sum is σ = 136961720. Its totient is φ = 136961718.

The previous prime is 136961687. The next prime is 136961743. The reversal of 136961719 is 917169631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 136961719 - 2⁵ = 136961687 is a prime.

It is a super-2 number, since 2×136961719² = 37517024942869922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136961749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68480859 + 68480860.

It is an arithmetic number, because the mean of its divisors is an integer number (68480860).

Almost surely, 2^136961719 is an apocalyptic number.

136961719 is a deficient number, since it is larger than the sum of its proper divisors (1).

136961719 is an equidigital number, since it uses as much as digits as its factorization.

136961719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61236, while the sum is 43.

The square root of 136961719 is about 11703.0645131948. The cubic root of 136961719 is about 515.4656535541.

The spelling of 136961719 in words is "one hundred thirty-six million, nine hundred sixty-one thousand, seven hundred nineteen".