1245152250 has 160 divisors (see below), whose sum is σ = 3687841872. Its totient is φ = 312422400.

The previous prime is 1245152243. The next prime is 1245152261. The reversal of 1245152250 is 522515421.

1245152250 is a `hidden beast` number, since 124 + 515 + 2 + 25 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 1108809 + 1244043441 = 1053^2 + 35271^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 342442 + ... + 346058.

Almost surely, 2^1245152250 is an apocalyptic number.

1245152250 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 1245152250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1843920936).

1245152250 is an abundant number, since it is smaller than the sum of its proper divisors (2442689622).

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

1245152250 is a wasteful number, since it uses less digits than its factorization.

1245152250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3663 (or 3644 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 1245152250 is about 35286.7149221913. The cubic root of 1245152250 is about 1075.8229861561.

Adding to 1245152250 its reverse (522515421), we get a palindrome (1767667671).

The spelling of 1245152250 in words is "one billion, two hundred forty-five million, one hundred fifty-two thousand, two hundred fifty".