133849417 has 4 divisors (see below), whose sum is σ = 144145540. Its totient is φ = 123553296.

The previous prime is 133849409. The next prime is 133849421. The reversal of 133849417 is 714948331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 714948331 = 109 ⋅6559159.

It can be written as a sum of positive squares in 2 ways, for example, as 10106041 + 123743376 = 3179^2 + 11124^2 .

It is a cyclic number.

It is not a de Polignac number, because 133849417 - 2³ = 133849409 is a prime.

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 133849417.

It is not an unprimeable number, because it can be changed into a prime (133849477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5148042 + ... + 5148067.

It is an arithmetic number, because the mean of its divisors is an integer number (36036385).

Almost surely, 2^133849417 is an apocalyptic number.

It is an amenable number.

133849417 is a deficient number, since it is larger than the sum of its proper divisors (10296123).

133849417 is a wasteful number, since it uses less digits than its factorization.

133849417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10296122.

The product of its digits is 72576, while the sum is 40.

The square root of 133849417 is about 11569.3308795280. The cubic root of 133849417 is about 511.5312393031.

It can be divided in two parts, 13384 and 9417, that added together give a square (22801 = 151²).

The spelling of 133849417 in words is "one hundred thirty-three million, eight hundred forty-nine thousand, four hundred seventeen".