1156610052 has 36 divisors (see below), whose sum is σ = 3148550860. Its totient is φ = 355879872.

The previous prime is 1156610017. The next prime is 1156610053. The reversal of 1156610052 is 2500166511.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 328551876 + 828058176 = 18126^2 + 28776^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 1156609998 and 1156610025.

It is not an unprimeable number, because it can be changed into a prime (1156610053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1235227 + ... + 1236162.

Almost surely, 2^1156610052 is an apocalyptic number.

1156610052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1156610052 is an abundant number, since it is smaller than the sum of its proper divisors (1991940808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1156610052 is a wasteful number, since it uses less digits than its factorization.

1156610052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2471412 (or 2471407 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 1156610052 is about 34008.9701696479. The cubic root of 1156610052 is about 1049.6930476906.

Adding to 1156610052 its reverse (2500166511), we get a palindrome (3656776563).

The spelling of 1156610052 in words is "one billion, one hundred fifty-six million, six hundred ten thousand, fifty-two".