213113669 has 4 divisors (see below), whose sum is σ = 213254400. Its totient is φ = 212972940.

The previous prime is 213113647. The next prime is 213113701. The reversal of 213113669 is 966311312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 213113669 - 2⁸ = 213113413 is a prime.

It is a super-2 number, since 2×213113669² = 90834871829283122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213113629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68069 + ... + 71130.

It is an arithmetic number, because the mean of its divisors is an integer number (53313600).

Almost surely, 2^213113669 is an apocalyptic number.

It is an amenable number.

213113669 is a deficient number, since it is larger than the sum of its proper divisors (140731).

213113669 is a wasteful number, since it uses less digits than its factorization.

213113669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140730.

The product of its digits is 5832, while the sum is 32.

The square root of 213113669 is about 14598.4132356911. The cubic root of 213113669 is about 597.3154781134.

The spelling of 213113669 in words is "two hundred thirteen million, one hundred thirteen thousand, six hundred sixty-nine".