1225153230 has 128 divisors (see below), whose sum is σ = 3468718080. Its totient is φ = 271142400.

The previous prime is 1225153211. The next prime is 1225153243. The reversal of 1225153230 is 323515221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1225153230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 996256 + ... + 997484.

It is an arithmetic number, because the mean of its divisors is an integer number (27099360).

Almost surely, 2^1225153230 is an apocalyptic number.

1225153230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1225153230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1734359040).

1225153230 is an abundant number, since it is smaller than the sum of its proper divisors (2243564850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1225153230 is a wasteful number, since it uses less digits than its factorization.

1225153230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1394.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 1225153230 is about 35002.1889315511. The cubic root of 1225153230 is about 1070.0320920878.

Adding to 1225153230 its reverse (323515221), we get a palindrome (1548668451).

The spelling of 1225153230 in words is "one billion, two hundred twenty-five million, one hundred fifty-three thousand, two hundred thirty".