1321774152 has 16 divisors (see below), whose sum is σ = 3304435440. Its totient is φ = 440591376.

The previous prime is 1321774147. The next prime is 1321774163. The reversal of 1321774152 is 2514771231.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27536938 + ... + 27536985.

It is an arithmetic number, because the mean of its divisors is an integer number (206527215).

Almost surely, 2^1321774152 is an apocalyptic number.

1321774152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1321774152 is an abundant number, since it is smaller than the sum of its proper divisors (1982661288).

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

1321774152 is a wasteful number, since it uses less digits than its factorization.

1321774152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55073932 (or 55073928 counting only the distinct ones).

The product of its digits is 11760, while the sum is 33.

The square root of 1321774152 is about 36356.2120139049. The cubic root of 1321774152 is about 1097.4525490802.

The spelling of 1321774152 in words is "one billion, three hundred twenty-one million, seven hundred seventy-four thousand, one hundred fifty-two".