1316128554 has 64 divisors (see below), whose sum is σ = 3234900480. Its totient is φ = 394009920.

The previous prime is 1316128553. The next prime is 1316128571. The reversal of 1316128554 is 4558216131.

1316128554 is a `hidden beast` number, since 1 + 31 + 612 + 8 + 5 + 5 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (1316128553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 639 + ... + 51309.

It is an arithmetic number, because the mean of its divisors is an integer number (50545320).

Almost surely, 2^1316128554 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1316128554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1617450240).

1316128554 is an abundant number, since it is smaller than the sum of its proper divisors (1918771926).

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

1316128554 is a wasteful number, since it uses less digits than its factorization.

1316128554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50732 (or 50726 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 1316128554 is about 36278.4861040259. The cubic root of 1316128554 is about 1095.8878293970.

The spelling of 1316128554 in words is "one billion, three hundred sixteen million, one hundred twenty-eight thousand, five hundred fifty-four".