1214338257 has 32 divisors (see below), whose sum is σ = 2030256000. Its totient is φ = 710579520.

The previous prime is 1214338219. The next prime is 1214338259. The reversal of 1214338257 is 7528334121.

It is not a de Polignac number, because 1214338257 - 2²⁴ = 1197561041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1214338259) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61882 + ... + 79107.

It is an arithmetic number, because the mean of its divisors is an integer number (63445500).

Almost surely, 2^1214338257 is an apocalyptic number.

It is an amenable number.

1214338257 is a deficient number, since it is larger than the sum of its proper divisors (815917743).

1214338257 is a wasteful number, since it uses less digits than its factorization.

1214338257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141038 (or 141032 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 1214338257 is about 34847.3565281500. The cubic root of 1214338257 is about 1066.8742319483.

The spelling of 1214338257 in words is "one billion, two hundred fourteen million, three hundred thirty-eight thousand, two hundred fifty-seven".