135954719 has 4 divisors (see below), whose sum is σ = 137202120. Its totient is φ = 134707320.

The previous prime is 135954713. The next prime is 135954727. The reversal of 135954719 is 917459531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 135954719 - 2²⁰ = 134906143 is a prime.

It is a super-2 number, since 2×135954719² = 36967371236737922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135954719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135954713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 623537 + ... + 623754.

It is an arithmetic number, because the mean of its divisors is an integer number (34300530).

Almost surely, 2^135954719 is an apocalyptic number.

135954719 is a deficient number, since it is larger than the sum of its proper divisors (1247401).

135954719 is a wasteful number, since it uses less digits than its factorization.

135954719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247400.

The product of its digits is 170100, while the sum is 44.

The square root of 135954719 is about 11659.9622212081. The cubic root of 135954719 is about 514.1992381680.

The spelling of 135954719 in words is "one hundred thirty-five million, nine hundred fifty-four thousand, seven hundred nineteen".