1213235254 has 32 divisors (see below), whose sum is σ = 2330240256. Its totient is φ = 459911520.

The previous prime is 1213235227. The next prime is 1213235281. The reversal of 1213235254 is 4525323121.

It is an interprime number because it is at equal distance from previous prime (1213235227) and next prime (1213235281).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100764 + ... + 112159.

It is an arithmetic number, because the mean of its divisors is an integer number (72820008).

Almost surely, 2^1213235254 is an apocalyptic number.

1213235254 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1213235254 is a deficient number, since it is larger than the sum of its proper divisors (1117005002).

1213235254 is a wasteful number, since it uses less digits than its factorization.

1213235254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212980.

The product of its digits is 7200, while the sum is 28.

The square root of 1213235254 is about 34831.5267250805. The cubic root of 1213235254 is about 1066.5511144141.

Adding to 1213235254 its reverse (4525323121), we get a palindrome (5738558375).

The spelling of 1213235254 in words is "one billion, two hundred thirteen million, two hundred thirty-five thousand, two hundred fifty-four".