1214425397 has 2 divisors, whose sum is σ = 1214425398. Its totient is φ = 1214425396.

The previous prime is 1214425391. The next prime is 1214425409. The reversal of 1214425397 is 7935244121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1202633041 + 11792356 = 34679^2 + 3434^2 .

It is a cyclic number.

It is not a de Polignac number, because 1214425397 - 2²² = 1210231093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1214425397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1214425391) by changing a digit.

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 as a sum of consecutive naturals, namely, 607212698 + 607212699.

It is an arithmetic number, because the mean of its divisors is an integer number (607212699).

Almost surely, 2^1214425397 is an apocalyptic number.

It is an amenable number.

1214425397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1214425397 is an equidigital number, since it uses as much as digits as its factorization.

1214425397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 38.

The square root of 1214425397 is about 34848.6068157681. The cubic root of 1214425397 is about 1066.8997507021.

The spelling of 1214425397 in words is "one billion, two hundred fourteen million, four hundred twenty-five thousand, three hundred ninety-seven".