160971380 has 18 divisors (see below), whose sum is σ = 338159094. Its totient is φ = 64365856.

The previous prime is 160971361. The next prime is 160971383. The reversal of 160971380 is 83179061.

It can be written as a sum of positive squares in 3 ways, for example, as 12082576 + 148888804 = 3476^2 + 12202^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 160971380.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160971383) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 55322 + ... + 58158.

Almost surely, 2^160971380 is an apocalyptic number.

160971380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

160971380 is an abundant number, since it is smaller than the sum of its proper divisors (177187714).

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

160971380 is an frugal number, since it uses more digits than its factorization.

160971380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5683 (or 2844 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 160971380 is about 12687.4497043338. The cubic root of 160971380 is about 543.9799453752.

The spelling of 160971380 in words is "one hundred sixty million, nine hundred seventy-one thousand, three hundred eighty".