1145003161 has 2 divisors, whose sum is σ = 1145003162. Its totient is φ = 1145003160.

The previous prime is 1145003129. The next prime is 1145003173. The reversal of 1145003161 is 1613005411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 840710025 + 304293136 = 28995^2 + 17444^2 .

It is an emirp because it is prime and its reverse (1613005411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1145003161 - 2⁵ = 1145003129 is a prime.

It is a super-2 number, since 2×1145003161² = 2622064477399983842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1145303161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572501580 + 572501581.

It is an arithmetic number, because the mean of its divisors is an integer number (572501581).

Almost surely, 2^1145003161 is an apocalyptic number.

It is an amenable number.

1145003161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145003161 is an equidigital number, since it uses as much as digits as its factorization.

1145003161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 1145003161 is about 33837.8953393972. The cubic root of 1145003161 is about 1046.1699193361.

Adding to 1145003161 its reverse (1613005411), we get a palindrome (2758008572).

The spelling of 1145003161 in words is "one billion, one hundred forty-five million, three thousand, one hundred sixty-one".