213081583 has 8 divisors (see below), whose sum is σ = 250333776. Its totient is φ = 178809600.

The previous prime is 213081563. The next prime is 213081607. The reversal of 213081583 is 385180312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213081583 is a prime.

It is a super-2 number, since 2×213081583² = 90807522027571778, which contains 22 as substring.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213081563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 744898 + ... + 745183.

It is an arithmetic number, because the mean of its divisors is an integer number (31291722).

Almost surely, 2^213081583 is an apocalyptic number.

213081583 is a deficient number, since it is larger than the sum of its proper divisors (37252193).

213081583 is a wasteful number, since it uses less digits than its factorization.

213081583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490105.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 213081583 is about 14597.3142392702. The cubic root of 213081583 is about 597.2854997042.

The spelling of 213081583 in words is "two hundred thirteen million, eighty-one thousand, five hundred eighty-three".