1252152378 has 32 divisors (see below), whose sum is σ = 2787217920. Its totient is φ = 416685600.

The previous prime is 1252152367. The next prime is 1252152397. The reversal of 1252152378 is 8732512521.

1252152378 is a `hidden beast` number, since 12 + 52 + 1 + 523 + 78 = 666.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 13678 + ... + 51878.

It is an arithmetic number, because the mean of its divisors is an integer number (87100560).

Almost surely, 2^1252152378 is an apocalyptic number.

1252152378 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1252152378 is an abundant number, since it is smaller than the sum of its proper divisors (1535065542).

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

1252152378 is a wasteful number, since it uses less digits than its factorization.

1252152378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38819 (or 38813 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 1252152378 is about 35385.7651888439. The cubic root of 1252152378 is about 1077.8352781886.

Adding to 1252152378 its reverse (8732512521), we get a palindrome (9984664899).

The spelling of 1252152378 in words is "one billion, two hundred fifty-two million, one hundred fifty-two thousand, three hundred seventy-eight".