213532161 has 8 divisors (see below), whose sum is σ = 297088320. Its totient is φ = 136165392.

The previous prime is 213532153. The next prime is 213532169. The reversal of 213532161 is 161235312.

It is an interprime number because it is at equal distance from previous prime (213532153) and next prime (213532169).

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

It is not a de Polignac number, because 213532161 - 2³ = 213532153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213532169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1547266 + ... + 1547403.

It is an arithmetic number, because the mean of its divisors is an integer number (37136040).

Almost surely, 2^213532161 is an apocalyptic number.

It is an amenable number.

213532161 is a deficient number, since it is larger than the sum of its proper divisors (83556159).

213532161 is a wasteful number, since it uses less digits than its factorization.

213532161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3094695.

The product of its digits is 1080, while the sum is 24.

The square root of 213532161 is about 14612.7396815245. The cubic root of 213532161 is about 597.7062059115.

Adding to 213532161 its reverse (161235312), we get a palindrome (374767473).

The spelling of 213532161 in words is "two hundred thirteen million, five hundred thirty-two thousand, one hundred sixty-one".