1150555020 has 24 divisors (see below), whose sum is σ = 3221554224. Its totient is φ = 306814656.

The previous prime is 1150555009. The next prime is 1150555031. The reversal of 1150555020 is 205550511.

It is an interprime number because it is at equal distance from previous prime (1150555009) and next prime (1150555031).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 9587899 + ... + 9588018.

It is an arithmetic number, because the mean of its divisors is an integer number (134231426).

Almost surely, 2^1150555020 is an apocalyptic number.

1150555020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1150555020 is an abundant number, since it is smaller than the sum of its proper divisors (2070999204).

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

1150555020 is a wasteful number, since it uses less digits than its factorization.

1150555020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19175929 (or 19175927 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 24.

The square root of 1150555020 is about 33919.8322519437. The cubic root of 1150555020 is about 1047.8580735002.

The spelling of 1150555020 in words is "one billion, one hundred fifty million, five hundred fifty-five thousand, twenty".