1327249021 has 8 divisors (see below), whose sum is σ = 1525331520. Its totient is φ = 1131285408.

The previous prime is 1327248983. The next prime is 1327249031. The reversal of 1327249021 is 1209427231.

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 1327249021 - 2⁷ = 1327248893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1327249031) 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, 528376 + ... + 530881.

It is an arithmetic number, because the mean of its divisors is an integer number (190666440).

Almost surely, 2^1327249021 is an apocalyptic number.

It is an amenable number.

1327249021 is a deficient number, since it is larger than the sum of its proper divisors (198082499).

1327249021 is a wasteful number, since it uses less digits than its factorization.

1327249021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059443.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 1327249021 is about 36431.4290276953. The cubic root of 1327249021 is about 1098.9657002330.

The spelling of 1327249021 in words is "one billion, three hundred twenty-seven million, two hundred forty-nine thousand, twenty-one".