8161532 has 12 divisors (see below), whose sum is σ = 14416920. Its totient is φ = 4042416.

The previous prime is 8161519. The next prime is 8161537. The reversal of 8161532 is 2351618.

It is a super-2 number, since 2×8161532² = 133221209174048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8161537) 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 3 ways as a sum of consecutive naturals, for example, 9107 + ... + 9962.

It is an arithmetic number, because the mean of its divisors is an integer number (1201410).

Almost surely, 2^8161532 is an apocalyptic number.

It is an amenable number.

8161532 is a deficient number, since it is larger than the sum of its proper divisors (6255388).

8161532 is a wasteful number, since it uses less digits than its factorization.

8161532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19180 (or 19178 counting only the distinct ones).

The product of its digits is 1440, while the sum is 26.

The square root of 8161532 is about 2856.8395124683. The cubic root of 8161532 is about 201.3371403556.

The spelling of 8161532 in words is "eight million, one hundred sixty-one thousand, five hundred thirty-two".