1253235000 has 320 divisors, whose sum is σ = 4206153600. Its totient is φ = 310464000.

The previous prime is 1253234999. The next prime is 1253235001. The reversal of 1253235000 is 5323521.

It is an interprime number because it is at equal distance from previous prime (1253234999) and next prime (1253235001).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253235001) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 18704967 + ... + 18705033.

It is an arithmetic number, because the mean of its divisors is an integer number (13144230).

Almost surely, 2^1253235000 is an apocalyptic number.

1253235000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1253235000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2103076800).

1253235000 is an abundant number, since it is smaller than the sum of its proper divisors (2952918600).

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

1253235000 is a wasteful number, since it uses less digits than its factorization.

1253235000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168 (or 149 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 1253235000 is about 35401.0593061846. The cubic root of 1253235000 is about 1078.1458240044.

Adding to 1253235000 its reverse (5323521), we get a palindrome (1258558521).

The spelling of 1253235000 in words is "one billion, two hundred fifty-three million, two hundred thirty-five thousand".