1327256737 has 2 divisors, whose sum is σ = 1327256738. Its totient is φ = 1327256736.

The previous prime is 1327256731. The next prime is 1327256741. The reversal of 1327256737 is 7376527231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1096338321 + 230918416 = 33111^2 + 15196^2 .

It is a cyclic number.

It is not a de Polignac number, because 1327256737 - 2³ = 1327256729 is a prime.

It is a super-2 number, since 2×1327256737² = 3523220891823774338, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1327256693 and 1327256702.

It is not a weakly prime, because it can be changed into another prime (1327256731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 663628368 + 663628369.

It is an arithmetic number, because the mean of its divisors is an integer number (663628369).

Almost surely, 2^1327256737 is an apocalyptic number.

It is an amenable number.

1327256737 is a deficient number, since it is larger than the sum of its proper divisors (1).

1327256737 is an equidigital number, since it uses as much as digits as its factorization.

1327256737 is an evil number, because the sum of its binary digits is even.

The product of its digits is 370440, while the sum is 43.

The square root of 1327256737 is about 36431.5349251167. The cubic root of 1327256737 is about 1098.9678298516.

It can be divided in two parts, 1327 and 256737, that added together give a square (258064 = 508²).

The spelling of 1327256737 in words is "one billion, three hundred twenty-seven million, two hundred fifty-six thousand, seven hundred thirty-seven".