1156353145 has 4 divisors (see below), whose sum is σ = 1387623780. Its totient is φ = 925082512.

The previous prime is 1156353139. The next prime is 1156353179. The reversal of 1156353145 is 5413536511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5413536511 = 52147 ⋅103813.

It can be written as a sum of positive squares in 2 ways, for example, as 186404409 + 969948736 = 13653^2 + 31144^2 .

It is a cyclic number.

It is not a de Polignac number, because 1156353145 - 2⁹ = 1156352633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1156353145.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115635310 + ... + 115635319.

It is an arithmetic number, because the mean of its divisors is an integer number (346905945).

Almost surely, 2^1156353145 is an apocalyptic number.

It is an amenable number.

1156353145 is a deficient number, since it is larger than the sum of its proper divisors (231270635).

1156353145 is an equidigital number, since it uses as much as digits as its factorization.

1156353145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231270634.

The product of its digits is 27000, while the sum is 34.

The square root of 1156353145 is about 34005.1929122597. The cubic root of 1156353145 is about 1049.6153224278.

Adding to 1156353145 its reverse (5413536511), we get a palindrome (6569889656).

The spelling of 1156353145 in words is "one billion, one hundred fifty-six million, three hundred fifty-three thousand, one hundred forty-five".