213401512 has 8 divisors (see below), whose sum is σ = 400127850. Its totient is φ = 106700752.

The previous prime is 213401509. The next prime is 213401563. The reversal of 213401512 is 215104312.

It can be written as a sum of positive squares in only one way, i.e., 117635716 + 95765796 = 10846^2 + 9786^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×213401512² = 91080410647772288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 213401512.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13337587 + ... + 13337602.

Almost surely, 2^213401512 is an apocalyptic number.

It is an amenable number.

213401512 is a deficient number, since it is larger than the sum of its proper divisors (186726338).

213401512 is a wasteful number, since it uses less digits than its factorization.

213401512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26675195 (or 26675191 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 213401512 is about 14608.2686174646. The cubic root of 213401512 is about 597.5842794696.

Adding to 213401512 its reverse (215104312), we get a palindrome (428505824).

The spelling of 213401512 in words is "two hundred thirteen million, four hundred one thousand, five hundred twelve".