1397127216 has 40 divisors (see below), whose sum is σ = 3626377024. Its totient is φ = 463498560.

The previous prime is 1397127197. The next prime is 1397127227. The reversal of 1397127216 is 6127217931.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58846 + ... + 79101.

Almost surely, 2^1397127216 is an apocalyptic number.

1397127216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1397127216 is an abundant number, since it is smaller than the sum of its proper divisors (2229249808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1397127216 is a wasteful number, since it uses less digits than its factorization.

1397127216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138169 (or 138163 counting only the distinct ones).

The product of its digits is 31752, while the sum is 39.

The square root of 1397127216 is about 37378.1649629834. The cubic root of 1397127216 is about 1117.9232391297.

The spelling of 1397127216 in words is "one billion, three hundred ninety-seven million, one hundred twenty-seven thousand, two hundred sixteen".