1214123505 has 64 divisors (see below), whose sum is σ = 2277089280. Its totient is φ = 540889344.

The previous prime is 1214123479. The next prime is 1214123509. The reversal of 1214123505 is 5053214121.

It is a happy number.

It is not a de Polignac number, because 1214123505 - 2⁵ = 1214123473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1214123509) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1712091 + ... + 1712799.

It is an arithmetic number, because the mean of its divisors is an integer number (35579520).

Almost surely, 2^1214123505 is an apocalyptic number.

1214123505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1214123505 is a deficient number, since it is larger than the sum of its proper divisors (1062965775).

1214123505 is a wasteful number, since it uses less digits than its factorization.

1214123505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1214123505 is about 34844.2750677927. The cubic root of 1214123505 is about 1066.8113370943.

Adding to 1214123505 its reverse (5053214121), we get a palindrome (6267337626).

The spelling of 1214123505 in words is "one billion, two hundred fourteen million, one hundred twenty-three thousand, five hundred five".