1156302145 has 4 divisors (see below), whose sum is σ = 1387562580. Its totient is φ = 925041712.

The previous prime is 1156302143. The next prime is 1156302157. The reversal of 1156302145 is 5412036511.

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

It can be written as a sum of positive squares in 2 ways, for example, as 553943296 + 602358849 = 23536^2 + 24543^2 .

It is a cyclic number.

It is not a de Polignac number, because 1156302145 - 2¹ = 1156302143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1156302143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115630210 + ... + 115630219.

It is an arithmetic number, because the mean of its divisors is an integer number (346890645).

Almost surely, 2^1156302145 is an apocalyptic number.

It is an amenable number.

1156302145 is a deficient number, since it is larger than the sum of its proper divisors (231260435).

1156302145 is an equidigital number, since it uses as much as digits as its factorization.

1156302145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231260434.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1156302145 is about 34004.4430185233. The cubic root of 1156302145 is about 1049.5998913954.

Adding to 1156302145 its reverse (5412036511), we get a palindrome (6568338656).

The spelling of 1156302145 in words is "one billion, one hundred fifty-six million, three hundred two thousand, one hundred forty-five".