1312054155 has 24 divisors (see below), whose sum is σ = 2277035280. Its totient is φ = 698898240.

The previous prime is 1312054129. The next prime is 1312054157. The reversal of 1312054155 is 5514502131.

1312054155 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1312054155 - 2⁶ = 1312054091 is a prime.

It is a super-2 number, since 2×1312054155² = 3442972211305528050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1312054157) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19720 + ... + 54890.

It is an arithmetic number, because the mean of its divisors is an integer number (94876470).

Almost surely, 2^1312054155 is an apocalyptic number.

1312054155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1312054155 is a deficient number, since it is larger than the sum of its proper divisors (964981125).

1312054155 is a wasteful number, since it uses less digits than its factorization.

1312054155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36011 (or 36008 counting only the distinct ones).

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

The square root of 1312054155 is about 36222.2880972475. The cubic root of 1312054155 is about 1094.7557971723.

Adding to 1312054155 its reverse (5514502131), we get a palindrome (6826556286).

The spelling of 1312054155 in words is "one billion, three hundred twelve million, fifty-four thousand, one hundred fifty-five".