1327136751 has 8 divisors (see below), whose sum is σ = 1966128560. Its totient is φ = 884757816.

The previous prime is 1327136743. The next prime is 1327136813. The reversal of 1327136751 is 1576317231.

It is not a de Polignac number, because 1327136751 - 2³ = 1327136743 is a prime.

It is a super-2 number, since 2×1327136751² = 3522583911709672002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1327136711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24576580 + ... + 24576633.

It is an arithmetic number, because the mean of its divisors is an integer number (245766070).

Almost surely, 2^1327136751 is an apocalyptic number.

1327136751 is a deficient number, since it is larger than the sum of its proper divisors (638991809).

1327136751 is an equidigital number, since it uses as much as digits as its factorization.

1327136751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49153222 (or 49153216 counting only the distinct ones).

The product of its digits is 26460, while the sum is 36.

The square root of 1327136751 is about 36429.8881551948. Note that the first 3 decimals coincide. The cubic root of 1327136751 is about 1098.9347127402.

The spelling of 1327136751 in words is "one billion, three hundred twenty-seven million, one hundred thirty-six thousand, seven hundred fifty-one".