201142317 has 8 divisors (see below), whose sum is σ = 283965696. Its totient is φ = 126206912.

The previous prime is 201142309. The next prime is 201142321. The reversal of 201142317 is 713241102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 201142317 - 2³ = 201142309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201142293 and 201142302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201142307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1971933 + ... + 1972034.

It is an arithmetic number, because the mean of its divisors is an integer number (35495712).

Almost surely, 2^201142317 is an apocalyptic number.

It is an amenable number.

201142317 is a deficient number, since it is larger than the sum of its proper divisors (82823379).

201142317 is a wasteful number, since it uses less digits than its factorization.

201142317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3943987.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 201142317 is about 14182.4651242300. The cubic root of 201142317 is about 585.9148196690.

Adding to 201142317 its reverse (713241102), we get a palindrome (914383419).

The spelling of 201142317 in words is "two hundred one million, one hundred forty-two thousand, three hundred seventeen".