141818728 has 16 divisors (see below), whose sum is σ = 267606180. Its totient is φ = 70457088.

The previous prime is 141818711. The next prime is 141818731. The reversal of 141818728 is 827818141.

It can be written as a sum of positive squares in 2 ways, for example, as 141181924 + 636804 = 11882^2 + 798^2 .

It is a super-2 number, since 2×141818728² = 40225103223075968, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55201 + ... + 57712.

Almost surely, 2^141818728 is an apocalyptic number.

It is an amenable number.

141818728 is a deficient number, since it is larger than the sum of its proper divisors (125787452).

141818728 is a wasteful number, since it uses less digits than its factorization.

141818728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113076 (or 113072 counting only the distinct ones).

The product of its digits is 28672, while the sum is 40.

The square root of 141818728 is about 11908.7668547167. The cubic root of 141818728 is about 521.4882513217.

The spelling of 141818728 in words is "one hundred forty-one million, eight hundred eighteen thousand, seven hundred twenty-eight".