181448201 has 8 divisors (see below), whose sum is σ = 198094464. Its totient is φ = 164827120.

The previous prime is 181448167. The next prime is 181448207. The reversal of 181448201 is 102844181.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-181448201 is a prime.

It is a super-2 number, since 2×181448201² = 65846899292272802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (181448207) 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, 10811 + ... + 21903.

It is an arithmetic number, because the mean of its divisors is an integer number (24761808).

Almost surely, 2^181448201 is an apocalyptic number.

181448201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

181448201 is a deficient number, since it is larger than the sum of its proper divisors (16646263).

181448201 is a wasteful number, since it uses less digits than its factorization.

181448201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12591.

The product of its (nonzero) digits is 2048, while the sum is 29.

The square root of 181448201 is about 13470.2710069248. The cubic root of 181448201 is about 566.1318070087.

The spelling of 181448201 in words is "one hundred eighty-one million, four hundred forty-eight thousand, two hundred one".