30143145 has 8 divisors (see below), whose sum is σ = 48229056. Its totient is φ = 16076336.

The previous prime is 30143137. The next prime is 30143149. The reversal of 30143145 is 54134103.

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 30143145 - 2³ = 30143137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30143149) 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, 1004757 + ... + 1004786.

It is an arithmetic number, because the mean of its divisors is an integer number (6028632).

Almost surely, 2^30143145 is an apocalyptic number.

It is an amenable number.

30143145 is a deficient number, since it is larger than the sum of its proper divisors (18085911).

30143145 is a wasteful number, since it uses less digits than its factorization.

30143145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2009551.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 30143145 is about 5490.2773154004. The cubic root of 30143145 is about 311.2166719689.

Adding to 30143145 its reverse (54134103), we get a palindrome (84277248).

It can be divided in two parts, 301431 and 45, that added together give a triangular number (301476 = T₇₇₆).

The spelling of 30143145 in words is "thirty million, one hundred forty-three thousand, one hundred forty-five".