171379072 has 48 divisors (see below), whose sum is σ = 357049980. Its totient is φ = 81931520.

The previous prime is 171378983. The next prime is 171379127. The reversal of 171379072 is 270973171.

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, 66447 + ... + 68977.

Almost surely, 2^171379072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 171379072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178524990).

171379072 is an abundant number, since it is smaller than the sum of its proper divisors (185670908).

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

171379072 is an equidigital number, since it uses as much as digits as its factorization.

171379072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2591 (or 2556 counting only the distinct ones).

The product of its (nonzero) digits is 18522, while the sum is 37.

The square root of 171379072 is about 13091.1829870337. The cubic root of 171379072 is about 555.4597516102.

The spelling of 171379072 in words is "one hundred seventy-one million, three hundred seventy-nine thousand, seventy-two".