1156239652 has 6 divisors (see below), whose sum is σ = 2023419398. Its totient is φ = 578119824.

The previous prime is 1156239641. The next prime is 1156239653. The reversal of 1156239652 is 2569326511.

It can be written as a sum of positive squares in only one way, i.e., 671535396 + 484704256 = 25914^2 + 22016^2 .

It is a super-2 number, since 2×1156239652² = 2673780265714162208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1156239653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144529953 + ... + 144529960.

Almost surely, 2^1156239652 is an apocalyptic number.

It is an amenable number.

1156239652 is a deficient number, since it is larger than the sum of its proper divisors (867179746).

1156239652 is a wasteful number, since it uses less digits than its factorization.

1156239652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289059917 (or 289059915 counting only the distinct ones).

The product of its digits is 97200, while the sum is 40.

The square root of 1156239652 is about 34003.5241114800. The cubic root of 1156239652 is about 1049.5809823159.

The spelling of 1156239652 in words is "one billion, one hundred fifty-six million, two hundred thirty-nine thousand, six hundred fifty-two".