1128177312 has 48 divisors (see below), whose sum is σ = 2965042080. Its totient is φ = 375604992.

The previous prime is 1128177311. The next prime is 1128177313. The reversal of 1128177312 is 2137718211.

It is an interprime number because it is at equal distance from previous prime (1128177311) and next prime (1128177313).

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

It is not an unprimeable number, because it can be changed into a prime (1128177311) 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, 78114 + ... + 91422.

It is an arithmetic number, because the mean of its divisors is an integer number (61771710).

Almost surely, 2^1128177312 is an apocalyptic number.

1128177312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1128177312 is an abundant number, since it is smaller than the sum of its proper divisors (1836864768).

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

1128177312 is a wasteful number, since it uses less digits than its factorization.

1128177312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14205 (or 14197 counting only the distinct ones).

The product of its digits is 4704, while the sum is 33.

The square root of 1128177312 is about 33588.3508377533. The cubic root of 1128177312 is about 1041.0201134641.

The spelling of 1128177312 in words is "one billion, one hundred twenty-eight million, one hundred seventy-seven thousand, three hundred twelve".