1312141157 has 2 divisors, whose sum is σ = 1312141158. Its totient is φ = 1312141156.

The previous prime is 1312141133. The next prime is 1312141183. The reversal of 1312141157 is 7511412131.

It is an a-pointer prime, because the next prime (1312141183) can be obtained adding 1312141157 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1191009121 + 121132036 = 34511^2 + 11006^2 .

It is an emirp because it is prime and its reverse (7511412131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1312141157 - 2⁸ = 1312140901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312141357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656070578 + 656070579.

It is an arithmetic number, because the mean of its divisors is an integer number (656070579).

Almost surely, 2^1312141157 is an apocalyptic number.

It is an amenable number.

1312141157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312141157 is an equidigital number, since it uses as much as digits as its factorization.

1312141157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 840, while the sum is 26.

The square root of 1312141157 is about 36223.4890230083. The cubic root of 1312141157 is about 1094.7799943033.

Adding to 1312141157 its reverse (7511412131), we get a palindrome (8823553288).

The spelling of 1312141157 in words is "one billion, three hundred twelve million, one hundred forty-one thousand, one hundred fifty-seven".