163197432 has 24 divisors (see below), whose sum is σ = 441993240. Its totient is φ = 54399120.

The previous prime is 163197409. The next prime is 163197473. The reversal of 163197432 is 234791361.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×163197432² = 53266803622789248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1133244 + ... + 1133387.

It is an arithmetic number, because the mean of its divisors is an integer number (18416385).

Almost surely, 2^163197432 is an apocalyptic number.

163197432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

163197432 is an abundant number, since it is smaller than the sum of its proper divisors (278795808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163197432 is a wasteful number, since it uses less digits than its factorization.

163197432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2266643 (or 2266636 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 163197432 is about 12774.8750287429. The cubic root of 163197432 is about 546.4760168685.

The spelling of 163197432 in words is "one hundred sixty-three million, one hundred ninety-seven thousand, four hundred thirty-two".