213815481601 has 8 divisors (see below), whose sum is σ = 223121545920. Its totient is φ = 204510228912.

The previous prime is 213815481533. The next prime is 213815481611. The reversal of 213815481601 is 106184518312.

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 213815481601 - 2²⁹ = 213278610689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213815481611) 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, 369870 + ... + 751288.

It is an arithmetic number, because the mean of its divisors is an integer number (27890193240).

Almost surely, 2^213815481601 is an apocalyptic number.

It is an amenable number.

213815481601 is a deficient number, since it is larger than the sum of its proper divisors (9306064319).

213815481601 is a wasteful number, since it uses less digits than its factorization.

213815481601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405815.

The product of its (nonzero) digits is 46080, while the sum is 40.

Adding to 213815481601 its reverse (106184518312), we get a palindrome (319999999913).

The spelling of 213815481601 in words is "two hundred thirteen billion, eight hundred fifteen million, four hundred eighty-one thousand, six hundred one".