1147075872 has 48 divisors (see below), whose sum is σ = 3141996480. Its totient is φ = 365733632.

The previous prime is 1147075871. The next prime is 1147075883. The reversal of 1147075872 is 2785707411.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×1147075872² = 2631566112249120768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1147075871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257547 + ... + 261962.

It is an arithmetic number, because the mean of its divisors is an integer number (65458260).

Almost surely, 2^1147075872 is an apocalyptic number.

1147075872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1147075872 is an abundant number, since it is smaller than the sum of its proper divisors (1994920608).

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

1147075872 is a wasteful number, since it uses less digits than its factorization.

1147075872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519545 (or 519537 counting only the distinct ones).

The product of its (nonzero) digits is 109760, while the sum is 42.

The square root of 1147075872 is about 33868.5085588368. The cubic root of 1147075872 is about 1046.8008057400.

The spelling of 1147075872 in words is "one billion, one hundred forty-seven million, seventy-five thousand, eight hundred seventy-two".