8161432 has 16 divisors (see below), whose sum is σ = 15796800. Its totient is φ = 3948960.

The previous prime is 8161429. The next prime is 8161451. The reversal of 8161432 is 2341618.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 8161397 and 8161406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16207 + ... + 16702.

It is an arithmetic number, because the mean of its divisors is an integer number (987300).

Almost surely, 2^8161432 is an apocalyptic number.

It is an amenable number.

8161432 is a deficient number, since it is larger than the sum of its proper divisors (7635368).

8161432 is a wasteful number, since it uses less digits than its factorization.

8161432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32946 (or 32942 counting only the distinct ones).

The product of its digits is 1152, while the sum is 25.

The square root of 8161432 is about 2856.8220105565. The cubic root of 8161432 is about 201.3363180510.

The spelling of 8161432 in words is "eight million, one hundred sixty-one thousand, four hundred thirty-two".