1331617364 has 48 divisors (see below), whose sum is σ = 2942177280. Its totient is φ = 512235360.

The previous prime is 1331617319. The next prime is 1331617387. The reversal of 1331617364 is 4637161331.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3032 + ... + 51695.

It is an arithmetic number, because the mean of its divisors is an integer number (61295360).

Almost surely, 2^1331617364 is an apocalyptic number.

1331617364 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1331617364 is an abundant number, since it is smaller than the sum of its proper divisors (1610559916).

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

1331617364 is a wasteful number, since it uses less digits than its factorization.

1331617364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54828 (or 54826 counting only the distinct ones).

The product of its digits is 27216, while the sum is 35.

The square root of 1331617364 is about 36491.3327243607. The cubic root of 1331617364 is about 1100.1700464388.

Adding to 1331617364 its reverse (4637161331), we get a palindrome (5968778695).

The spelling of 1331617364 in words is "one billion, three hundred thirty-one million, six hundred seventeen thousand, three hundred sixty-four".