1252033978 has 16 divisors (see below), whose sum is σ = 2028909960. Its totient is φ = 576035136.

The previous prime is 1252033943. The next prime is 1252034033. The reversal of 1252033978 is 8793302521.

It can be written as a sum of positive squares in 4 ways, for example, as 714118729 + 537915249 = 26723^2 + 23193^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1252033978.

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 7 ways as a sum of consecutive naturals, for example, 67713 + ... + 84196.

Almost surely, 2^1252033978 is an apocalyptic number.

1252033978 is a deficient number, since it is larger than the sum of its proper divisors (776875982).

1252033978 is a wasteful number, since it uses less digits than its factorization.

1252033978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152241.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 1252033978 is about 35384.0921601784. The cubic root of 1252033978 is about 1077.8013047623.

The spelling of 1252033978 in words is "one billion, two hundred fifty-two million, thirty-three thousand, nine hundred seventy-eight".