1252993687 has 8 divisors (see below), whose sum is σ = 1447308432. Its totient is φ = 1072080000.

The previous prime is 1252993667. The next prime is 1252993699. The reversal of 1252993687 is 7863992521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1252993687 - 2⁷ = 1252993559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252993657) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3350064 + ... + 3350437.

It is an arithmetic number, because the mean of its divisors is an integer number (180913554).

Almost surely, 2^1252993687 is an apocalyptic number.

1252993687 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1252993687 is a deficient number, since it is larger than the sum of its proper divisors (194314745).

1252993687 is a wasteful number, since it uses less digits than its factorization.

1252993687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6700529.

The product of its digits is 1632960, while the sum is 52.

The square root of 1252993687 is about 35397.6508683839. The cubic root of 1252993687 is about 1078.0766198238.

The spelling of 1252993687 in words is "one billion, two hundred fifty-two million, nine hundred ninety-three thousand, six hundred eighty-seven".