1312152552 has 48 divisors (see below), whose sum is σ = 3577310880. Its totient is φ = 434484000.

The previous prime is 1312152503. The next prime is 1312152563. The reversal of 1312152552 is 2552512131.

1312152552 is a `hidden beast` number, since 13 + 121 + 525 + 5 + 2 = 666.

It is a super-2 number, since 2×1312152552² = 3443488639440225408, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49474 + ... + 71217.

It is an arithmetic number, because the mean of its divisors is an integer number (74527310).

Almost surely, 2^1312152552 is an apocalyptic number.

1312152552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1312152552 is an abundant number, since it is smaller than the sum of its proper divisors (2265158328).

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

1312152552 is a wasteful number, since it uses less digits than its factorization.

1312152552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120854 (or 120847 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 1312152552 is about 36223.6463101107. The cubic root of 1312152552 is about 1094.7831634191.

Adding to 1312152552 its reverse (2552512131), we get a palindrome (3864664683).

The spelling of 1312152552 in words is "one billion, three hundred twelve million, one hundred fifty-two thousand, five hundred fifty-two".