2003161057 has 16 divisors (see below), whose sum is σ = 2117664000. Its totient is φ = 1891090432.

The previous prime is 2003161049. The next prime is 2003161117. The reversal of 2003161057 is 7501613002.

It is a cyclic number.

It is not a de Polignac number, because 2003161057 - 2³ = 2003161049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2003161037) 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, 666444 + ... + 669442.

It is an arithmetic number, because the mean of its divisors is an integer number (132354000).

Almost surely, 2^2003161057 is an apocalyptic number.

It is an amenable number.

2003161057 is a deficient number, since it is larger than the sum of its proper divisors (114502943).

2003161057 is a wasteful number, since it uses less digits than its factorization.

2003161057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3392.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 2003161057 is about 44756.6872880467. The cubic root of 2003161057 is about 1260.5844808694.

Adding to 2003161057 its reverse (7501613002), we get a palindrome (9504774059).

The spelling of 2003161057 in words is "two billion, three million, one hundred sixty-one thousand, fifty-seven".