1303000161 has 16 divisors (see below), whose sum is σ = 1757343744. Its totient is φ = 858692304.

The previous prime is 1303000133. The next prime is 1303000169. The reversal of 1303000161 is 1610003031.

It is not a de Polignac number, because 1303000161 - 2⁷ = 1303000033 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1303000161.

It is not an unprimeable number, because it can be changed into a prime (1303000169) 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, 184090 + ... + 191036.

It is an arithmetic number, because the mean of its divisors is an integer number (109833984).

Almost surely, 2^1303000161 is an apocalyptic number.

1303000161 is the 20841-st octagonal number.

It is an amenable number.

1303000161 is a deficient number, since it is larger than the sum of its proper divisors (454343583).

1303000161 is a wasteful number, since it uses less digits than its factorization.

1303000161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7660.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1303000161 is about 36097.0935256566. The cubic root of 1303000161 is about 1092.2318160659.

Adding to 1303000161 its reverse (1610003031), we get a palindrome (2913003192).

The spelling of 1303000161 in words is "one billion, three hundred three million, one hundred sixty-one", and thus it is an aban number.