181360142 has 16 divisors (see below), whose sum is σ = 284990400. Its totient is φ = 86442720.

The previous prime is 181360139. The next prime is 181360147. The reversal of 181360142 is 241063181.

It is a super-2 number, since 2×181360142² = 65783002212520328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181360147) 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, 15209 + ... + 24372.

It is an arithmetic number, because the mean of its divisors is an integer number (17811900).

Almost surely, 2^181360142 is an apocalyptic number.

181360142 is a deficient number, since it is larger than the sum of its proper divisors (103630258).

181360142 is a wasteful number, since it uses less digits than its factorization.

181360142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39691.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 181360142 is about 13467.0019677729. The cubic root of 181360142 is about 566.0402086582.

The spelling of 181360142 in words is "one hundred eighty-one million, three hundred sixty thousand, one hundred forty-two".