1351115140 has 24 divisors (see below), whose sum is σ = 2844296280. Its totient is φ = 539121408.

The previous prime is 1351115131. The next prime is 1351115201. The reversal of 1351115140 is 415111531.

It can be written as a sum of positive squares in 4 ways, for example, as 197290116 + 1153825024 = 14046^2 + 33968^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74407 + ... + 90766.

It is an arithmetic number, because the mean of its divisors is an integer number (118512345).

Almost surely, 2^1351115140 is an apocalyptic number.

1351115140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1351115140 is an abundant number, since it is smaller than the sum of its proper divisors (1493181140).

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

1351115140 is a wasteful number, since it uses less digits than its factorization.

1351115140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165591 (or 165589 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 22.

The square root of 1351115140 is about 36757.5181425515. The cubic root of 1351115140 is about 1105.5136777578.

Adding to 1351115140 its reverse (415111531), we get a palindrome (1766226671).

The spelling of 1351115140 in words is "one billion, three hundred fifty-one million, one hundred fifteen thousand, one hundred forty".