1145314161 has 12 divisors (see below), whose sum is σ = 1715614992. Its totient is φ = 763542612.

The previous prime is 1145314117. The next prime is 1145314171. The reversal of 1145314161 is 1614135411.

1145314161 is a `hidden beast` number, since 11 + 453 + 141 + 61 = 666.

It is not a de Polignac number, because 1145314161 - 2⁶ = 1145314097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1145314171) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2356371 + ... + 2356856.

It is an arithmetic number, because the mean of its divisors is an integer number (142967916).

Almost surely, 2^1145314161 is an apocalyptic number.

It is an amenable number.

1145314161 is a deficient number, since it is larger than the sum of its proper divisors (570300831).

1145314161 is an frugal number, since it uses more digits than its factorization.

1145314161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4713242 (or 4713230 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 1145314161 is about 33842.4904668672. The cubic root of 1145314161 is about 1046.2646292324.

Adding to 1145314161 its reverse (1614135411), we get a palindrome (2759449572).

The spelling of 1145314161 in words is "one billion, one hundred forty-five million, three hundred fourteen thousand, one hundred sixty-one".