1156532345 has 32 divisors (see below), whose sum is σ = 1523349504. Its totient is φ = 840153600.

The previous prime is 1156532341. The next prime is 1156532369. The reversal of 1156532345 is 5432356511.

It is not a de Polignac number, because 1156532345 - 2² = 1156532341 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1156532341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 185885 + ... + 192005.

It is an arithmetic number, because the mean of its divisors is an integer number (47604672).

Almost surely, 2^1156532345 is an apocalyptic number.

It is an amenable number.

1156532345 is a deficient number, since it is larger than the sum of its proper divisors (366817159).

1156532345 is a wasteful number, since it uses less digits than its factorization.

1156532345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6233.

The product of its digits is 54000, while the sum is 35.

The square root of 1156532345 is about 34007.8277018689. The cubic root of 1156532345 is about 1049.6695392419.

Adding to 1156532345 its reverse (5432356511), we get a palindrome (6588888856).

The spelling of 1156532345 in words is "one billion, one hundred fifty-six million, five hundred thirty-two thousand, three hundred forty-five".