1214145254 has 16 divisors (see below), whose sum is σ = 2101602048. Its totient is φ = 515295432.

The previous prime is 1214145241. The next prime is 1214145263. The reversal of 1214145254 is 4525414121.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 419552 + ... + 422435.

It is an arithmetic number, because the mean of its divisors is an integer number (131350128).

Almost surely, 2^1214145254 is an apocalyptic number.

1214145254 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1214145254 is a deficient number, since it is larger than the sum of its proper divisors (887456794).

1214145254 is a wasteful number, since it uses less digits than its factorization.

1214145254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842099.

The product of its digits is 6400, while the sum is 29.

The square root of 1214145254 is about 34844.5871549657. The cubic root of 1214145254 is about 1066.8177071055.

Adding to 1214145254 its reverse (4525414121), we get a palindrome (5739559375).

The spelling of 1214145254 in words is "one billion, two hundred fourteen million, one hundred forty-five thousand, two hundred fifty-four".