1235121248 has 12 divisors (see below), whose sum is σ = 2431645020. Its totient is φ = 617560608.

The previous prime is 1235121221. The next prime is 1235121259. The reversal of 1235121248 is 8421215321.

It is a happy number.

It is a super-2 number, since 2×1235121248² = 3051048994522155008, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1235121248.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19298738 + ... + 19298801.

It is an arithmetic number, because the mean of its divisors is an integer number (202637085).

Almost surely, 2^1235121248 is an apocalyptic number.

It is an amenable number.

1235121248 is a deficient number, since it is larger than the sum of its proper divisors (1196523772).

1235121248 is an equidigital number, since it uses as much as digits as its factorization.

1235121248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38597549 (or 38597541 counting only the distinct ones).

The product of its digits is 3840, while the sum is 29.

The square root of 1235121248 is about 35144.2918266964. The cubic root of 1235121248 is about 1072.9262340838.

Adding to 1235121248 its reverse (8421215321), we get a palindrome (9656336569).

The spelling of 1235121248 in words is "one billion, two hundred thirty-five million, one hundred twenty-one thousand, two hundred forty-eight".