30201142 has 4 divisors (see below), whose sum is σ = 45301716. Its totient is φ = 15100570.

The previous prime is 30201137. The next prime is 30201169. The reversal of 30201142 is 24110203.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7550284 + ... + 7550287.

It is an arithmetic number, because the mean of its divisors is an integer number (11325429).

Almost surely, 2^30201142 is an apocalyptic number.

30201142 is a deficient number, since it is larger than the sum of its proper divisors (15100574).

30201142 is a wasteful number, since it uses less digits than its factorization.

30201142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15100573.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 30201142 is about 5495.5565687199. The cubic root of 30201142 is about 311.4161431868.

Adding to 30201142 its reverse (24110203), we get a palindrome (54311345).

The spelling of 30201142 in words is "thirty million, two hundred one thousand, one hundred forty-two".