213481017 has 12 divisors (see below), whose sum is σ = 324591280. Its totient is φ = 134830008.

The previous prime is 213481013. The next prime is 213481067. The reversal of 213481017 is 710184312.

It is not a de Polignac number, because 213481017 - 2² = 213481013 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213481013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 624043 + ... + 624384.

Almost surely, 2^213481017 is an apocalyptic number.

It is an amenable number.

213481017 is a deficient number, since it is larger than the sum of its proper divisors (111110263).

213481017 is a wasteful number, since it uses less digits than its factorization.

213481017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248452 (or 1248449 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 213481017 is about 14610.9895968754. The cubic root of 213481017 is about 597.6584823789.

The spelling of 213481017 in words is "two hundred thirteen million, four hundred eighty-one thousand, seventeen".