213555413 has 4 divisors (see below), whose sum is σ = 214748640. Its totient is φ = 212362188.

The previous prime is 213555371. The next prime is 213555427. The reversal of 213555413 is 314555312.

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 213555413 - 2¹⁶ = 213489877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213555443) 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, 596345 + ... + 596702.

It is an arithmetic number, because the mean of its divisors is an integer number (53687160).

Almost surely, 2^213555413 is an apocalyptic number.

It is an amenable number.

213555413 is a deficient number, since it is larger than the sum of its proper divisors (1193227).

213555413 is a wasteful number, since it uses less digits than its factorization.

213555413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193226.

The product of its digits is 9000, while the sum is 29.

The square root of 213555413 is about 14613.5352670050. The cubic root of 213555413 is about 597.7279003176.

The spelling of 213555413 in words is "two hundred thirteen million, five hundred fifty-five thousand, four hundred thirteen".