1318147752 has 16 divisors (see below), whose sum is σ = 3295369440. Its totient is φ = 439382576.

The previous prime is 1318147739. The next prime is 1318147769. The reversal of 1318147752 is 2577418131.

It is a happy number.

It is a super-2 number, since 2×1318147752² = 3475026992205307008, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1318147752.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27461388 + ... + 27461435.

It is an arithmetic number, because the mean of its divisors is an integer number (205960590).

Almost surely, 2^1318147752 is an apocalyptic number.

1318147752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1318147752 is an abundant number, since it is smaller than the sum of its proper divisors (1977221688).

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

1318147752 is a wasteful number, since it uses less digits than its factorization.

1318147752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54922832 (or 54922828 counting only the distinct ones).

The product of its digits is 47040, while the sum is 39.

The square root of 1318147752 is about 36306.3045764782. The cubic root of 1318147752 is about 1096.4479782874.

The spelling of 1318147752 in words is "one billion, three hundred eighteen million, one hundred forty-seven thousand, seven hundred fifty-two".