181942034 has 8 divisors (see below), whose sum is σ = 273040140. Its totient is φ = 90928656.

The previous prime is 181942031. The next prime is 181942039. The reversal of 181942034 is 430249181.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 131033809 + 50908225 = 11447^2 + 7135^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×181942034³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (181942031) 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 3 ways as a sum of consecutive naturals, for example, 15509 + ... + 24584.

Almost surely, 2^181942034 is an apocalyptic number.

181942034 is a deficient number, since it is larger than the sum of its proper divisors (91098106).

181942034 is a wasteful number, since it uses less digits than its factorization.

181942034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42364.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 181942034 is about 13488.5890292499. The cubic root of 181942034 is about 566.6449402666.

The spelling of 181942034 in words is "one hundred eighty-one million, nine hundred forty-two thousand, thirty-four".