1252146450 has 48 divisors (see below), whose sum is σ = 3240346176. Its totient is φ = 319387200.

The previous prime is 1252146433. The next prime is 1252146457. The reversal of 1252146450 is 546412521.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1252146457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 178021 + ... + 184920.

It is an arithmetic number, because the mean of its divisors is an integer number (67507212).

Almost surely, 2^1252146450 is an apocalyptic number.

1252146450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1252146450 is an abundant number, since it is smaller than the sum of its proper divisors (1988199726).

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

1252146450 is a wasteful number, since it uses less digits than its factorization.

1252146450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362979 (or 362974 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 1252146450 is about 35385.6814262492. The cubic root of 1252146450 is about 1077.8335772727.

Adding to 1252146450 its reverse (546412521), we get a palindrome (1798558971).

The spelling of 1252146450 in words is "one billion, two hundred fifty-two million, one hundred forty-six thousand, four hundred fifty".