1252152388 has 12 divisors (see below), whose sum is σ = 2192512252. Its totient is φ = 625720320.

The previous prime is 1252152367. The next prime is 1252152397. The reversal of 1252152388 is 8832512521.

It can be written as a sum of positive squares in 2 ways, for example, as 500953924 + 751198464 = 22382^2 + 27408^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80973 + ... + 95188.

Almost surely, 2^1252152388 is an apocalyptic number.

It is an amenable number.

1252152388 is a deficient number, since it is larger than the sum of its proper divisors (940359864).

1252152388 is a wasteful number, since it uses less digits than its factorization.

1252152388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177942 (or 177940 counting only the distinct ones).

The product of its digits is 38400, while the sum is 37.

The square root of 1252152388 is about 35385.7653301437. The cubic root of 1252152388 is about 1077.8352810579.

The spelling of 1252152388 in words is "one billion, two hundred fifty-two million, one hundred fifty-two thousand, three hundred eighty-eight".