1327704157 has 8 divisors (see below), whose sum is σ = 1431796184. Its totient is φ = 1223892288.

The previous prime is 1327704151. The next prime is 1327704167. The reversal of 1327704157 is 7514077231.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 105083001 + 1222621156 = 10251^2 + 34966^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1327704157 - 2¹⁹ = 1327179869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1327704151) 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, 60138 + ... + 79195.

It is an arithmetic number, because the mean of its divisors is an integer number (178974523).

Almost surely, 2^1327704157 is an apocalyptic number.

It is an amenable number.

1327704157 is a deficient number, since it is larger than the sum of its proper divisors (104092027).

1327704157 is a wasteful number, since it uses less digits than its factorization.

1327704157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140079.

The product of its (nonzero) digits is 41160, while the sum is 37.

The square root of 1327704157 is about 36437.6749669899. The cubic root of 1327704157 is about 1099.0913038142.

The spelling of 1327704157 in words is "one billion, three hundred twenty-seven million, seven hundred four thousand, one hundred fifty-seven".