160431431 has 4 divisors (see below), whose sum is σ = 169868592. Its totient is φ = 150994272.

The previous prime is 160431391. The next prime is 160431449. The reversal of 160431431 is 134134061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134134061 = 2203 ⋅60887.

It is not a de Polignac number, because 160431431 - 2⁶ = 160431367 is a prime.

It is a super-2 number, since 2×160431431² = 51476488105415522, 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 = 160431397 and 160431406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160433431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4718555 + ... + 4718588.

It is an arithmetic number, because the mean of its divisors is an integer number (42467148).

Almost surely, 2^160431431 is an apocalyptic number.

160431431 is a deficient number, since it is larger than the sum of its proper divisors (9437161).

160431431 is an equidigital number, since it uses as much as digits as its factorization.

160431431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9437160.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 160431431 is about 12666.1529676536. The cubic root of 160431431 is about 543.3710370246.

Adding to 160431431 its reverse (134134061), we get a palindrome (294565492).

The spelling of 160431431 in words is "one hundred sixty million, four hundred thirty-one thousand, four hundred thirty-one".