1156501230 has 32 divisors (see below), whose sum is σ = 2850621984. Its totient is φ = 300064896.

The previous prime is 1156501189. The next prime is 1156501231. The reversal of 1156501230 is 321056511.

It is a self number, because there is not a number n which added to its sum of digits gives 1156501230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156501231) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 519837 + ... + 522056.

It is an arithmetic number, because the mean of its divisors is an integer number (89081937).

Almost surely, 2^1156501230 is an apocalyptic number.

1156501230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1156501230 is an abundant number, since it is smaller than the sum of its proper divisors (1694120754).

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

1156501230 is a wasteful number, since it uses less digits than its factorization.

1156501230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041940.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 1156501230 is about 34007.3702305838. The cubic root of 1156501230 is about 1049.6601258258.

Adding to 1156501230 its reverse (321056511), we get a palindrome (1477557741).

The spelling of 1156501230 in words is "one billion, one hundred fifty-six million, five hundred one thousand, two hundred thirty".