160331903 has 4 divisors (see below), whose sum is σ = 161830440. Its totient is φ = 158833368.

The previous prime is 160331891. The next prime is 160331917. The reversal of 160331903 is 309133061.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 160331903 - 2⁴ = 160331887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160331933) 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, 749108 + ... + 749321.

It is an arithmetic number, because the mean of its divisors is an integer number (40457610).

Almost surely, 2^160331903 is an apocalyptic number.

160331903 is a deficient number, since it is larger than the sum of its proper divisors (1498537).

160331903 is a wasteful number, since it uses less digits than its factorization.

160331903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1498536.

The product of its (nonzero) digits is 1458, while the sum is 26.

The square root of 160331903 is about 12662.2234619359. The cubic root of 160331903 is about 543.2586487817.

Adding to 160331903 its reverse (309133061), we get a palindrome (469464964).

The spelling of 160331903 in words is "one hundred sixty million, three hundred thirty-one thousand, nine hundred three".