18029141 has 4 divisors (see below), whose sum is σ = 19416012. Its totient is φ = 16642272.

The previous prime is 18029131. The next prime is 18029147. The reversal of 18029141 is 14192081.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2592100 + 15437041 = 1610^2 + 3929^2 .

It is a cyclic number.

It is not a de Polignac number, because 18029141 - 2¹⁸ = 17766997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18029141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18029147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 693416 + ... + 693441.

It is an arithmetic number, because the mean of its divisors is an integer number (4854003).

Almost surely, 2^18029141 is an apocalyptic number.

It is an amenable number.

18029141 is a deficient number, since it is larger than the sum of its proper divisors (1386871).

18029141 is a wasteful number, since it uses less digits than its factorization.

18029141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1386870.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 18029141 is about 4246.0735980433. The cubic root of 18029141 is about 262.2154909922.

The spelling of 18029141 in words is "eighteen million, twenty-nine thousand, one hundred forty-one".