1151287156 has 6 divisors (see below), whose sum is σ = 2014752530. Its totient is φ = 575643576.

The previous prime is 1151287097. The next prime is 1151287157. The reversal of 1151287156 is 6517821511.

It can be written as a sum of positive squares in only one way, i.e., 894967056 + 256320100 = 29916^2 + 16010^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151287157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143910891 + ... + 143910898.

Almost surely, 2^1151287156 is an apocalyptic number.

It is an amenable number.

1151287156 is a deficient number, since it is larger than the sum of its proper divisors (863465374).

1151287156 is a wasteful number, since it uses less digits than its factorization.

1151287156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287821793 (or 287821791 counting only the distinct ones).

The product of its digits is 16800, while the sum is 37.

The square root of 1151287156 is about 33930.6226880675. The cubic root of 1151287156 is about 1048.0802885578.

The spelling of 1151287156 in words is "one billion, one hundred fifty-one million, two hundred eighty-seven thousand, one hundred fifty-six".