1587348749 has 16 divisors (see below), whose sum is σ = 1992622080. Its totient is φ = 1232930160.

The previous prime is 1587348691. The next prime is 1587348751. The reversal of 1587348749 is 9478437851.

It is not a de Polignac number, because 1587348749 - 2²⁴ = 1570571533 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1587348694 and 1587348703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1587348949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256397 + ... + 262514.

It is an arithmetic number, because the mean of its divisors is an integer number (124538880).

Almost surely, 2^1587348749 is an apocalyptic number.

1587348749 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1587348749 is a deficient number, since it is larger than the sum of its proper divisors (405273331).

1587348749 is a wasteful number, since it uses less digits than its factorization.

1587348749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518960.

The product of its digits is 6773760, while the sum is 56.

The square root of 1587348749 is about 39841.5455147011. The cubic root of 1587348749 is about 1166.5162275227.

The spelling of 1587348749 in words is "one billion, five hundred eighty-seven million, three hundred forty-eight thousand, seven hundred forty-nine".