1252130172 has 96 divisors (see below), whose sum is σ = 3344705280. Its totient is φ = 362050560.

The previous prime is 1252130147. The next prime is 1252130179. The reversal of 1252130172 is 2710312521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252130179) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139047 + ... + 147777.

It is an arithmetic number, because the mean of its divisors is an integer number (34840680).

Almost surely, 2^1252130172 is an apocalyptic number.

1252130172 is a gapful number since it is divisible by the number (12) 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 1252130172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1672352640).

1252130172 is an abundant number, since it is smaller than the sum of its proper divisors (2092575108).

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

1252130172 is a wasteful number, since it uses less digits than its factorization.

1252130172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8811 (or 8809 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 1252130172 is about 35385.4514172138. The cubic root of 1252130172 is about 1077.8289066127.

Adding to 1252130172 its reverse (2710312521), we get a palindrome (3962442693).

The spelling of 1252130172 in words is "one billion, two hundred fifty-two million, one hundred thirty thousand, one hundred seventy-two".