1147887072 has 48 divisors (see below), whose sum is σ = 3348006480. Its totient is φ = 382628736.

The previous prime is 1147887047. The next prime is 1147887089. The reversal of 1147887072 is 2707887411.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 663423 + ... + 665150.

It is an arithmetic number, because the mean of its divisors is an integer number (69750135).

Almost surely, 2^1147887072 is an apocalyptic number.

1147887072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1147887072 is an abundant number, since it is smaller than the sum of its proper divisors (2200119408).

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

1147887072 is a wasteful number, since it uses less digits than its factorization.

1147887072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328592 (or 1328578 counting only the distinct ones).

The product of its (nonzero) digits is 175616, while the sum is 45.

The square root of 1147887072 is about 33880.4821689420. The cubic root of 1147887072 is about 1047.0475097693.

The spelling of 1147887072 in words is "one billion, one hundred forty-seven million, eight hundred eighty-seven thousand, seventy-two".