163432215 has 16 divisors (see below), whose sum is σ = 290546400. Its totient is φ = 87163776.

The previous prime is 163432151. The next prime is 163432249. The reversal of 163432215 is 512234361.

163432215 is a `hidden beast` number, since 1 + 634 + 3 + 2 + 21 + 5 = 666.

It is not a de Polignac number, because 163432215 - 2⁶ = 163432151 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 605170 + ... + 605439.

It is an arithmetic number, because the mean of its divisors is an integer number (18159150).

Almost surely, 2^163432215 is an apocalyptic number.

163432215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

163432215 is a deficient number, since it is larger than the sum of its proper divisors (127114185).

163432215 is a wasteful number, since it uses less digits than its factorization.

163432215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210623 (or 1210617 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 163432215 is about 12784.0609745104. The cubic root of 163432215 is about 546.7379527717.

Adding to 163432215 its reverse (512234361), we get a palindrome (675666576).

The spelling of 163432215 in words is "one hundred sixty-three million, four hundred thirty-two thousand, two hundred fifteen".