1145311532 has 6 divisors (see below), whose sum is σ = 2004295188. Its totient is φ = 572655764.

The previous prime is 1145311501. The next prime is 1145311537. The reversal of 1145311532 is 2351135411.

It is not an unprimeable number, because it can be changed into a prime (1145311537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143163938 + ... + 143163945.

It is an arithmetic number, because the mean of its divisors is an integer number (334049198).

Almost surely, 2^1145311532 is an apocalyptic number.

It is an amenable number.

1145311532 is a deficient number, since it is larger than the sum of its proper divisors (858983656).

1145311532 is a wasteful number, since it uses less digits than its factorization.

1145311532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286327887 (or 286327885 counting only the distinct ones).

The product of its digits is 1800, while the sum is 26.

The square root of 1145311532 is about 33842.4516251409. The cubic root of 1145311532 is about 1046.2638286858.

Adding to 1145311532 its reverse (2351135411), we get a palindrome (3496446943).

The spelling of 1145311532 in words is "one billion, one hundred forty-five million, three hundred eleven thousand, five hundred thirty-two".