1327385257 has 8 divisors (see below), whose sum is σ = 1468452672. Its totient is φ = 1189717200.

The previous prime is 1327385243. The next prime is 1327385261. The reversal of 1327385257 is 7525837231.

It is a happy number.

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 1327385257 - 2¹¹ = 1327383209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1327385057) 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, 849018 + ... + 850579.

It is an arithmetic number, because the mean of its divisors is an integer number (183556584).

Almost surely, 2^1327385257 is an apocalyptic number.

It is an amenable number.

1327385257 is a deficient number, since it is larger than the sum of its proper divisors (141067415).

1327385257 is a wasteful number, since it uses less digits than its factorization.

1327385257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1699679.

The product of its digits is 352800, while the sum is 43.

The square root of 1327385257 is about 36433.2987389284. The cubic root of 1327385257 is about 1099.0033002026.

The spelling of 1327385257 in words is "one billion, three hundred twenty-seven million, three hundred eighty-five thousand, two hundred fifty-seven".