30553142 has 8 divisors (see below), whose sum is σ = 46122096. Its totient is φ = 15179112.

The previous prime is 30553141. The next prime is 30553147. The reversal of 30553142 is 24135503.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30553141) 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, 48338 + ... + 48965.

It is an arithmetic number, because the mean of its divisors is an integer number (5765262).

Almost surely, 2^30553142 is an apocalyptic number.

30553142 is a deficient number, since it is larger than the sum of its proper divisors (15568954).

30553142 is a wasteful number, since it uses less digits than its factorization.

30553142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97462.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 30553142 is about 5527.4896653002. The cubic root of 30553142 is about 312.6213442357.

Adding to 30553142 its reverse (24135503), we get a palindrome (54688645).

The spelling of 30553142 in words is "thirty million, five hundred fifty-three thousand, one hundred forty-two".