171378152 has 32 divisors (see below), whose sum is σ = 365791680. Its totient is φ = 74511360.

The previous prime is 171378143. The next prime is 171378169. The reversal of 171378152 is 251873171.

It is a happy 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, 40313 + ... + 44360.

It is an arithmetic number, because the mean of its divisors is an integer number (11430990).

Almost surely, 2^171378152 is an apocalyptic number.

It is an amenable number.

171378152 is an abundant number, since it is smaller than the sum of its proper divisors (194413528).

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

171378152 is a wasteful number, since it uses less digits than its factorization.

171378152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84713 (or 84709 counting only the distinct ones).

The product of its digits is 11760, while the sum is 35.

The square root of 171378152 is about 13091.1478488328. The cubic root of 171378152 is about 555.4587576657.

The spelling of 171378152 in words is "one hundred seventy-one million, three hundred seventy-eight thousand, one hundred fifty-two".