213283501 has 8 divisors (see below), whose sum is σ = 218269080. Its totient is φ = 208333632.

The previous prime is 213283471. The next prime is 213283519. The reversal of 213283501 is 105382312.

It can be written as a sum of positive squares in 4 ways, for example, as 124434025 + 88849476 = 11155^2 + 9426^2 .

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 213283501 - 2²⁷ = 79065773 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 (213283571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3351 + ... + 20923.

It is an arithmetic number, because the mean of its divisors is an integer number (27283635).

Almost surely, 2^213283501 is an apocalyptic number.

It is an amenable number.

213283501 is a deficient number, since it is larger than the sum of its proper divisors (4985579).

213283501 is a wasteful number, since it uses less digits than its factorization.

213283501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17855.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 213283501 is about 14604.2288738571. The cubic root of 213283501 is about 597.4741044898.

The spelling of 213283501 in words is "two hundred thirteen million, two hundred eighty-three thousand, five hundred one".