1185256130 has 32 divisors (see below), whose sum is σ = 2178788544. Its totient is φ = 464118336.

The previous prime is 1185256117. The next prime is 1185256141. The reversal of 1185256130 is 316525811.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103784 + ... + 114636.

It is an arithmetic number, because the mean of its divisors is an integer number (68087142).

Almost surely, 2^1185256130 is an apocalyptic number.

1185256130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1185256130 is a deficient number, since it is larger than the sum of its proper divisors (993532414).

1185256130 is a wasteful number, since it uses less digits than its factorization.

1185256130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11090.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 1185256130 is about 34427.5489978593. The cubic root of 1185256130 is about 1058.2884834088.

The spelling of 1185256130 in words is "one billion, one hundred eighty-five million, two hundred fifty-six thousand, one hundred thirty".