1155266530 has 32 divisors (see below), whose sum is σ = 2284873920. Its totient is φ = 417069120.

The previous prime is 1155266479. The next prime is 1155266587. The reversal of 1155266530 is 356625511.

1155266530 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

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 in 15 ways as a sum of consecutive naturals, for example, 22489 + ... + 53068.

It is an arithmetic number, because the mean of its divisors is an integer number (71402310).

Almost surely, 2^1155266530 is an apocalyptic number.

1155266530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1155266530 is a deficient number, since it is larger than the sum of its proper divisors (1129607390).

1155266530 is a wasteful number, since it uses less digits than its factorization.

1155266530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75714.

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 1155266530 is about 33989.2119649750. The cubic root of 1155266530 is about 1049.2864479275.

The spelling of 1155266530 in words is "one billion, one hundred fifty-five million, two hundred sixty-six thousand, five hundred thirty".