181414129 has 8 divisors (see below), whose sum is σ = 197565480. Its totient is φ = 165576576.

The previous prime is 181414127. The next prime is 181414141. The reversal of 181414129 is 921414181.

It can be written as a sum of positive squares in 4 ways, for example, as 9935104 + 171479025 = 3152^2 + 13095^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 181414129 - 2¹ = 181414127 is a prime.

It is a super-2 number, since 2×181414129² = 65822172401657282, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

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 181414129.

It is not an unprimeable number, because it can be changed into a prime (181414127) 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, 77242 + ... + 79555.

It is an arithmetic number, because the mean of its divisors is an integer number (24695685).

Almost surely, 2^181414129 is an apocalyptic number.

It is an amenable number.

181414129 is a deficient number, since it is larger than the sum of its proper divisors (16151351).

181414129 is a wasteful number, since it uses less digits than its factorization.

181414129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156899.

The product of its digits is 2304, while the sum is 31.

The square root of 181414129 is about 13469.0062365417. The cubic root of 181414129 is about 566.0963690704.

The spelling of 181414129 in words is "one hundred eighty-one million, four hundred fourteen thousand, one hundred twenty-nine".