1214425187 has 2 divisors, whose sum is σ = 1214425188. Its totient is φ = 1214425186.

The previous prime is 1214425133. The next prime is 1214425189. The reversal of 1214425187 is 7815244121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1214425187 - 2¹⁸ = 1214163043 is a prime.

Together with 1214425189, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1214425189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607212593 + 607212594.

It is an arithmetic number, because the mean of its divisors is an integer number (607212594).

Almost surely, 2^1214425187 is an apocalyptic number.

1214425187 is a deficient number, since it is larger than the sum of its proper divisors (1).

1214425187 is an equidigital number, since it uses as much as digits as its factorization.

1214425187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17920, while the sum is 35.

The square root of 1214425187 is about 34848.6038027351. The cubic root of 1214425187 is about 1066.8996892055.

The spelling of 1214425187 in words is "one billion, two hundred fourteen million, four hundred twenty-five thousand, one hundred eighty-seven".