1312856254152 has 24 divisors (see below), whose sum is σ = 3555652355190. Its totient is φ = 437618751360.

The previous prime is 1312856254081. The next prime is 1312856254159. The reversal of 1312856254152 is 2514526582131.

1312856254152 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 8 + 5 + 625 + 4 + 15 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1239049491876 + 73806762276 = 1113126^2 + 271674^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 1312856254098 and 1312856254107.

It is not an unprimeable number, because it can be changed into a prime (1312856254159) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9117057249 + ... + 9117057392.

Almost surely, 2^{1312856254152} is an apocalyptic number.

1312856254152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1312856254152 is an abundant number, since it is smaller than the sum of its proper divisors (2242796101038).

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

1312856254152 is a wasteful number, since it uses less digits than its factorization.

1312856254152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18234114653 (or 18234114646 counting only the distinct ones).

The product of its digits is 576000, while the sum is 45.

The spelling of 1312856254152 in words is "one trillion, three hundred twelve billion, eight hundred fifty-six million, two hundred fifty-four thousand, one hundred fifty-two".