732531161 has 4 divisors (see below), whose sum is σ = 734358324. Its totient is φ = 730704000.

The previous prime is 732531119. The next prime is 732531193. The reversal of 732531161 is 161135237.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 478734400 + 253796761 = 21880^2 + 15931^2 .

It is a cyclic number.

It is not a de Polignac number, because 732531161 - 2¹⁰ = 732530137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (732531361) 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, 912980 + ... + 913781.

It is an arithmetic number, because the mean of its divisors is an integer number (183589581).

Almost surely, 2^732531161 is an apocalyptic number.

It is an amenable number.

732531161 is a deficient number, since it is larger than the sum of its proper divisors (1827163).

732531161 is a wasteful number, since it uses less digits than its factorization.

732531161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1827162.

The product of its digits is 3780, while the sum is 29.

The square root of 732531161 is about 27065.3128746002. The cubic root of 732531161 is about 901.4508126877.

Adding to 732531161 its reverse (161135237), we get a palindrome (893666398).

The spelling of 732531161 in words is "seven hundred thirty-two million, five hundred thirty-one thousand, one hundred sixty-one".