1156539364 has 6 divisors (see below), whose sum is σ = 2023943894. Its totient is φ = 578269680.

The previous prime is 1156539361. The next prime is 1156539421. The reversal of 1156539364 is 4639356511.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1047169600 + 109369764 = 32360^2 + 10458^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1156539364.

It is not an unprimeable number, because it can be changed into a prime (1156539361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144567417 + ... + 144567424.

Almost surely, 2^1156539364 is an apocalyptic number.

It is an amenable number.

1156539364 is a deficient number, since it is larger than the sum of its proper divisors (867404530).

1156539364 is a wasteful number, since it uses less digits than its factorization.

1156539364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289134845 (or 289134843 counting only the distinct ones).

The product of its digits is 291600, while the sum is 43.

The square root of 1156539364 is about 34007.9308985419. The cubic root of 1156539364 is about 1049.6716627206.

The spelling of 1156539364 in words is "one billion, one hundred fifty-six million, five hundred thirty-nine thousand, three hundred sixty-four".