213561235 has 8 divisors (see below), whose sum is σ = 269761680. Its totient is φ = 161856864.

The previous prime is 213561223. The next prime is 213561269. The reversal of 213561235 is 532165312.

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 213561235 - 2⁵ = 213561203 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1123912 + ... + 1124101.

It is an arithmetic number, because the mean of its divisors is an integer number (33720210).

Almost surely, 2^213561235 is an apocalyptic number.

213561235 is a deficient number, since it is larger than the sum of its proper divisors (56200445).

213561235 is a wasteful number, since it uses less digits than its factorization.

213561235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2248037.

The product of its digits is 5400, while the sum is 28.

The square root of 213561235 is about 14613.7344645371. The cubic root of 213561235 is about 597.7333320698.

The spelling of 213561235 in words is "two hundred thirteen million, five hundred sixty-one thousand, two hundred thirty-five".