160691130 has 24 divisors (see below), whose sum is σ = 417797172. Its totient is φ = 42850944.

The previous prime is 160691119. The next prime is 160691131. The reversal of 160691130 is 31196061.

It can be written as a sum of positive squares in 2 ways, for example, as 137100681 + 23590449 = 11709^2 + 4857^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 160691094 and 160691103.

It is not an unprimeable number, because it can be changed into a prime (160691131) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 892639 + ... + 892818.

Almost surely, 2^160691130 is an apocalyptic number.

160691130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

160691130 is an abundant number, since it is smaller than the sum of its proper divisors (257106042).

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

160691130 is a wasteful number, since it uses less digits than its factorization.

160691130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785470 (or 1785467 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 160691130 is about 12676.4005143416. The cubic root of 160691130 is about 543.6640736199.

The spelling of 160691130 in words is "one hundred sixty million, six hundred ninety-one thousand, one hundred thirty".