1131648330 has 32 divisors (see below), whose sum is σ = 2789362944. Its totient is φ = 293616576.

The previous prime is 1131648251. The next prime is 1131648337. The reversal of 1131648330 is 338461311.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1131648337) 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, 508642 + ... + 510861.

It is an arithmetic number, because the mean of its divisors is an integer number (87167592).

Almost surely, 2^1131648330 is an apocalyptic number.

1131648330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1131648330 is an abundant number, since it is smaller than the sum of its proper divisors (1657714614).

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

1131648330 is a wasteful number, since it uses less digits than its factorization.

1131648330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1019550.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 1131648330 is about 33639.9811236570. The cubic root of 1131648330 is about 1042.0866420735.

The spelling of 1131648330 in words is "one billion, one hundred thirty-one million, six hundred forty-eight thousand, three hundred thirty".