133408719 has 6 divisors (see below), whose sum is σ = 192701496. Its totient is φ = 88939140.

The previous prime is 133408703. The next prime is 133408727. The reversal of 133408719 is 917804331.

It is a happy number.

It is not a de Polignac number, because 133408719 - 2⁴ = 133408703 is a prime.

It is a super-2 number, since 2×133408719² = 35595772610441922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133408739) 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, 7411587 + ... + 7411604.

It is an arithmetic number, because the mean of its divisors is an integer number (32116916).

Almost surely, 2^133408719 is an apocalyptic number.

133408719 is a deficient number, since it is larger than the sum of its proper divisors (59292777).

133408719 is a wasteful number, since it uses less digits than its factorization.

133408719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14823197 (or 14823194 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 133408719 is about 11550.2692176416. The cubic root of 133408719 is about 510.9692180349.

The spelling of 133408719 in words is "one hundred thirty-three million, four hundred eight thousand, seven hundred nineteen".