1147881456 has 60 divisors (see below), whose sum is σ = 3331465592. Its totient is φ = 382625856.

The previous prime is 1147881439. The next prime is 1147881461. The reversal of 1147881456 is 6541887411.

1147881456 is a `hidden beast` number, since 114 + 7 + 8 + 81 + 456 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143731 + ... + 151506.

Almost surely, 2^1147881456 is an apocalyptic number.

1147881456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1147881456 is an abundant number, since it is smaller than the sum of its proper divisors (2183584136).

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

1147881456 is an equidigital number, since it uses as much as digits as its factorization.

1147881456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295260 (or 295242 counting only the distinct ones).

The product of its digits is 215040, while the sum is 45.

The square root of 1147881456 is about 33880.3992892646. The cubic root of 1147881456 is about 1047.0458022179.

The spelling of 1147881456 in words is "one billion, one hundred forty-seven million, eight hundred eighty-one thousand, four hundred fifty-six".