1148727720 has 64 divisors (see below), whose sum is σ = 3938497920. Its totient is φ = 262566144.

The previous prime is 1148727691. The next prime is 1148727721. The reversal of 1148727720 is 277278411.

It is not an unprimeable number, because it can be changed into a prime (1148727721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 682927 + ... + 684606.

It is an arithmetic number, because the mean of its divisors is an integer number (61539030).

Almost surely, 2^1148727720 is an apocalyptic number.

1148727720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1148727720 is an abundant number, since it is smaller than the sum of its proper divisors (2789770200).

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

1148727720 is a wasteful number, since it uses less digits than its factorization.

1148727720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367554 (or 1367550 counting only the distinct ones).

The product of its (nonzero) digits is 43904, while the sum is 39.

The square root of 1148727720 is about 33892.8859792140. The cubic root of 1148727720 is about 1047.3030469891.

The spelling of 1148727720 in words is "one billion, one hundred forty-eight million, seven hundred twenty-seven thousand, seven hundred twenty".