1397814219 has 16 divisors (see below), whose sum is σ = 2079438240. Its totient is φ = 928005120.

The previous prime is 1397814217. The next prime is 1397814227. The reversal of 1397814219 is 9124187931.

It is not a de Polignac number, because 1397814219 - 2¹ = 1397814217 is a prime.

It is a super-2 number, since 2×1397814219² = 3907769181677159922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1397814217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100902 + ... + 113915.

It is an arithmetic number, because the mean of its divisors is an integer number (129964890).

Almost surely, 2^1397814219 is an apocalyptic number.

1397814219 is a deficient number, since it is larger than the sum of its proper divisors (681624021).

1397814219 is a wasteful number, since it uses less digits than its factorization.

1397814219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215067 (or 215061 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 1397814219 is about 37387.3537309075. The cubic root of 1397814219 is about 1118.1064462040.

The spelling of 1397814219 in words is "one billion, three hundred ninety-seven million, eight hundred fourteen thousand, two hundred nineteen".