163878245 has 8 divisors (see below), whose sum is σ = 202997760. Its totient is φ = 126873360.

The previous prime is 163878227. The next prime is 163878263. The reversal of 163878245 is 542878361.

It is an interprime number because it is at equal distance from previous prime (163878227) and next prime (163878263).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 163878245 - 2¹⁶ = 163812709 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 163878196 and 163878205.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 528485 + ... + 528794.

It is an arithmetic number, because the mean of its divisors is an integer number (25374720).

Almost surely, 2^163878245 is an apocalyptic number.

It is an amenable number.

163878245 is a deficient number, since it is larger than the sum of its proper divisors (39119515).

163878245 is a wasteful number, since it uses less digits than its factorization.

163878245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057315.

The product of its digits is 322560, while the sum is 44.

The square root of 163878245 is about 12801.4938581402. The cubic root of 163878245 is about 547.2348764666.

The spelling of 163878245 in words is "one hundred sixty-three million, eight hundred seventy-eight thousand, two hundred forty-five".