1253987039 has 8 divisors (see below), whose sum is σ = 1260010080. Its totient is φ = 1247973376.

The previous prime is 1253987029. The next prime is 1253987041. The reversal of 1253987039 is 9307893521.

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 1253987039 - 2¹² = 1253982943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1253986984 and 1253987002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253987029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 522827 + ... + 525219.

It is an arithmetic number, because the mean of its divisors is an integer number (157501260).

Almost surely, 2^1253987039 is an apocalyptic number.

1253987039 is a deficient number, since it is larger than the sum of its proper divisors (6023041).

1253987039 is a wasteful number, since it uses less digits than its factorization.

1253987039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4689.

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 1253987039 is about 35411.6794151308. The cubic root of 1253987039 is about 1078.3614381493.

The spelling of 1253987039 in words is "one billion, two hundred fifty-three million, nine hundred eighty-seven thousand, thirty-nine".