1156530136 has 8 divisors (see below), whose sum is σ = 2168494020. Its totient is φ = 578265064.

The previous prime is 1156530101. The next prime is 1156530149. The reversal of 1156530136 is 6310356511.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 1156530098 and 1156530107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72283126 + ... + 72283141.

Almost surely, 2^1156530136 is an apocalyptic number.

It is an amenable number.

1156530136 is a deficient number, since it is larger than the sum of its proper divisors (1011963884).

1156530136 is a wasteful number, since it uses less digits than its factorization.

1156530136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144566273 (or 144566269 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 1156530136 is about 34007.7952240365. The cubic root of 1156530136 is about 1049.6688709448.

Adding to 1156530136 its reverse (6310356511), we get a palindrome (7466886647).

The spelling of 1156530136 in words is "one billion, one hundred fifty-six million, five hundred thirty thousand, one hundred thirty-six".