1214622457 has 16 divisors (see below), whose sum is σ = 1296610560. Its totient is φ = 1135830528.

The previous prime is 1214622403. The next prime is 1214622463. The reversal of 1214622457 is 7542264121.

It is a cyclic number.

It is not a de Polignac number, because 1214622457 - 2²³ = 1206233849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1214622757) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127618 + ... + 136804.

It is an arithmetic number, because the mean of its divisors is an integer number (81038160).

Almost surely, 2^1214622457 is an apocalyptic number.

It is an amenable number.

1214622457 is a deficient number, since it is larger than the sum of its proper divisors (81988103).

1214622457 is an equidigital number, since it uses as much as digits as its factorization.

1214622457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9360.

The product of its digits is 26880, while the sum is 34.

The square root of 1214622457 is about 34851.4340737939. The cubic root of 1214622457 is about 1066.9574547803.

Adding to 1214622457 its reverse (7542264121), we get a palindrome (8756886578).

The spelling of 1214622457 in words is "one billion, two hundred fourteen million, six hundred twenty-two thousand, four hundred fifty-seven".