129700719 has 6 divisors (see below), whose sum is σ = 187345496. Its totient is φ = 86467140.

The previous prime is 129700691. The next prime is 129700721. The reversal of 129700719 is 917007921.

It is not a de Polignac number, because 129700719 - 2¹¹ = 129698671 is a prime.

It is a super-2 number, since 2×129700719² = 33644553018233922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129700729) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7205587 + ... + 7205604.

Almost surely, 2^129700719 is an apocalyptic number.

129700719 is a deficient number, since it is larger than the sum of its proper divisors (57644777).

129700719 is a wasteful number, since it uses less digits than its factorization.

129700719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14411197 (or 14411194 counting only the distinct ones).

The product of its (nonzero) digits is 7938, while the sum is 36.

The square root of 129700719 is about 11388.6223486425. The cubic root of 129700719 is about 506.1906604431.

The spelling of 129700719 in words is "one hundred twenty-nine million, seven hundred thousand, seven hundred nineteen".