201142522 has 8 divisors (see below), whose sum is σ = 344815776. Its totient is φ = 86203932.

The previous prime is 201142517. The next prime is 201142541. The reversal of 201142522 is 225241102.

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

It is a self number, because there is not a number n which added to its sum of digits gives 201142522.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7183648 + ... + 7183675.

It is an arithmetic number, because the mean of its divisors is an integer number (43101972).

Almost surely, 2^201142522 is an apocalyptic number.

201142522 is a deficient number, since it is larger than the sum of its proper divisors (143673254).

201142522 is a wasteful number, since it uses less digits than its factorization.

201142522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14367332.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 201142522 is about 14182.4723514626. The cubic root of 201142522 is about 585.9150187196.

Adding to 201142522 its reverse (225241102), we get a palindrome (426383624).

The spelling of 201142522 in words is "two hundred one million, one hundred forty-two thousand, five hundred twenty-two".