1214350391 has 2 divisors, whose sum is σ = 1214350392. Its totient is φ = 1214350390.

The previous prime is 1214350369. The next prime is 1214350427. The reversal of 1214350391 is 1930534121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1214350391 - 2¹⁴ = 1214334007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1214350301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607175195 + 607175196.

It is an arithmetic number, because the mean of its divisors is an integer number (607175196).

Almost surely, 2^1214350391 is an apocalyptic number.

1214350391 is a deficient number, since it is larger than the sum of its proper divisors (1).

1214350391 is an equidigital number, since it uses as much as digits as its factorization.

1214350391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 1214350391 is about 34847.5306298739. The cubic root of 1214350391 is about 1066.8777854362.

The spelling of 1214350391 in words is "one billion, two hundred fourteen million, three hundred fifty thousand, three hundred ninety-one".