1252234100 has 72 divisors (see below), whose sum is σ = 2967810048. Its totient is φ = 455817600.

The previous prime is 1252234099. The next prime is 1252234117. The reversal of 1252234100 is 14322521.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85517 + ... + 99083.

It is an arithmetic number, because the mean of its divisors is an integer number (41219584).

Almost surely, 2^1252234100 is an apocalyptic number.

1252234100 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 1252234100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1483905024).

1252234100 is an abundant number, since it is smaller than the sum of its proper divisors (1715575948).

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

1252234100 is a wasteful number, since it uses less digits than its factorization.

1252234100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13665 (or 13658 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1252234100 is about 35386.9198998726. The cubic root of 1252234100 is about 1077.8587260639.

Adding to 1252234100 its reverse (14322521), we get a palindrome (1266556621).

The spelling of 1252234100 in words is "one billion, two hundred fifty-two million, two hundred thirty-four thousand, one hundred".