30142551 has 8 divisors (see below), whose sum is σ = 40460400. Its totient is φ = 19959872.

The previous prime is 30142549. The next prime is 30142559. The reversal of 30142551 is 15524103.

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

It is a cyclic number.

It is not a de Polignac number, because 30142551 - 2¹ = 30142549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30142559) 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, 33270 + ... + 34163.

It is an arithmetic number, because the mean of its divisors is an integer number (5057550).

Almost surely, 2^30142551 is an apocalyptic number.

30142551 is a deficient number, since it is larger than the sum of its proper divisors (10317849).

30142551 is a wasteful number, since it uses less digits than its factorization.

30142551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67585.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 30142551 is about 5490.2232195057. The cubic root of 30142551 is about 311.2146276797.

Adding to 30142551 its reverse (15524103), we get a palindrome (45666654).

It can be divided in two parts, 301425 and 51, that added together give a triangular number (301476 = T₇₇₆).

The spelling of 30142551 in words is "thirty million, one hundred forty-two thousand, five hundred fifty-one".