1156136 has 16 divisors (see below), whose sum is σ = 2295540. Its totient is φ = 544000.

The previous prime is 1156121. The next prime is 1156151. The reversal of 1156136 is 6316511.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1156121) and next prime (1156151).

It can be written as a sum of positive squares in 2 ways, for example, as 1144900 + 11236 = 1070^2 + 106^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4115 + ... + 4386.

2^1156136 is an apocalyptic number.

It is an amenable number.

1156136 is a deficient number, since it is larger than the sum of its proper divisors (1139404).

1156136 is a wasteful number, since it uses less digits than its factorization.

1156136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8524 (or 8520 counting only the distinct ones).

The product of its digits is 540, while the sum is 23.

The square root of 1156136 is about 1075.2376481504. The cubic root of 1156136 is about 104.9549617878.

The spelling of 1156136 in words is "one million, one hundred fifty-six thousand, one hundred thirty-six".