160131021 has 16 divisors (see below), whose sum is σ = 219055104. Its totient is φ = 104001584.

The previous prime is 160131019. The next prime is 160131043. The reversal of 160131021 is 120131061.

It is a cyclic number.

It is not a de Polignac number, because 160131021 - 2¹ = 160131019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160131001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29506 + ... + 34508.

It is an arithmetic number, because the mean of its divisors is an integer number (13690944).

Almost surely, 2^160131021 is an apocalyptic number.

It is an amenable number.

160131021 is a deficient number, since it is larger than the sum of its proper divisors (58924083).

160131021 is a wasteful number, since it uses less digits than its factorization.

160131021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5280.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 160131021 is about 12654.2886406151. The cubic root of 160131021 is about 543.0316686013.

Adding to 160131021 its reverse (120131061), we get a palindrome (280262082).

The spelling of 160131021 in words is "one hundred sixty million, one hundred thirty-one thousand, twenty-one".