18051741 has 12 divisors (see below), whose sum is σ = 27040832. Its totient is φ = 12034332.

The previous prime is 18051731. The next prime is 18051749. The reversal of 18051741 is 14715081.

It is a de Polignac number, because none of the positive numbers 2^k-18051741 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18051749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36901 + ... + 37386.

Almost surely, 2^18051741 is an apocalyptic number.

It is an amenable number.

18051741 is a deficient number, since it is larger than the sum of its proper divisors (8989091).

18051741 is an frugal number, since it uses more digits than its factorization.

18051741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74302 (or 74290 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 27.

The square root of 18051741 is about 4248.7340467485. The cubic root of 18051741 is about 262.3250099031.

The spelling of 18051741 in words is "eighteen million, fifty-one thousand, seven hundred forty-one".