201219481 has 8 divisors (see below), whose sum is σ = 218643200. Its totient is φ = 184479120.

The previous prime is 201219457. The next prime is 201219493. The reversal of 201219481 is 184912102.

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 201219481 - 2¹⁹ = 200695193 is a prime.

It is a super-2 number, since 2×201219481² = 80978559067818722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201219451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170226 + ... + 171403.

It is an arithmetic number, because the mean of its divisors is an integer number (27330400).

Almost surely, 2^201219481 is an apocalyptic number.

It is an amenable number.

201219481 is a deficient number, since it is larger than the sum of its proper divisors (17423719).

201219481 is a wasteful number, since it uses less digits than its factorization.

201219481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341679.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 201219481 is about 14185.1852649164. The cubic root of 201219481 is about 585.9897347035.

The spelling of 201219481 in words is "two hundred one million, two hundred nineteen thousand, four hundred eighty-one".