160513531 has 4 divisors (see below), whose sum is σ = 160559064. Its totient is φ = 160468000.

The previous prime is 160513517. The next prime is 160513537. The reversal of 160513531 is 135315061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 135315061 = 7 ⋅19330723.

It is a cyclic number.

It is not a de Polignac number, because 160513531 - 2⁵ = 160513499 is a prime.

It is a super-2 number, since 2×160513531² = 51529187268175922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 160513496 and 160513505.

It is not an unprimeable number, because it can be changed into a prime (160513537) 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 3 ways as a sum of consecutive naturals, for example, 16990 + ... + 24691.

It is an arithmetic number, because the mean of its divisors is an integer number (40139766).

Almost surely, 2^160513531 is an apocalyptic number.

160513531 is a deficient number, since it is larger than the sum of its proper divisors (45533).

160513531 is an equidigital number, since it uses as much as digits as its factorization.

160513531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45532.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 160513531 is about 12669.3934740381. The cubic root of 160513531 is about 543.4637103747.

Adding to 160513531 its reverse (135315061), we get a palindrome (295828592).

The spelling of 160513531 in words is "one hundred sixty million, five hundred thirteen thousand, five hundred thirty-one".