213240553 has 8 divisors (see below), whose sum is σ = 224769600. Its totient is φ = 201742128.

The previous prime is 213240523. The next prime is 213240557. The reversal of 213240553 is 355042312.

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-213240553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213240557) 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, 7428 + ... + 21946.

It is an arithmetic number, because the mean of its divisors is an integer number (28096200).

Almost surely, 2^213240553 is an apocalyptic number.

It is an amenable number.

213240553 is a deficient number, since it is larger than the sum of its proper divisors (11529047).

213240553 is a wasteful number, since it uses less digits than its factorization.

213240553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15311.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 213240553 is about 14602.7584038085. The cubic root of 213240553 is about 597.4339981833.

Adding to 213240553 its reverse (355042312), we get a palindrome (568282865).

The spelling of 213240553 in words is "two hundred thirteen million, two hundred forty thousand, five hundred fifty-three".