147881317 has 16 divisors (see below), whose sum is σ = 162673920. Its totient is φ = 133869568.

The previous prime is 147881299. The next prime is 147881333. The reversal of 147881317 is 713188741.

147881317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 147881317 - 2¹⁵ = 147848549 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 147881317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147881347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45573 + ... + 48709.

It is an arithmetic number, because the mean of its divisors is an integer number (10167120).

Almost surely, 2^147881317 is an apocalyptic number.

147881317 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

147881317 is a deficient number, since it is larger than the sum of its proper divisors (14792603).

147881317 is a wasteful number, since it uses less digits than its factorization.

147881317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3260.

The product of its digits is 37632, while the sum is 40.

The square root of 147881317 is about 12160.6462410515. The cubic root of 147881317 is about 528.8158170412.

The spelling of 147881317 in words is "one hundred forty-seven million, eight hundred eighty-one thousand, three hundred seventeen".