1591010449 has 12 divisors (see below), whose sum is σ = 1893810864. Its totient is φ = 1332006984.

The previous prime is 1591010431. The next prime is 1591010497. The reversal of 1591010449 is 9440101951.

It is not a de Polignac number, because 1591010449 - 2⁷ = 1591010321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1591010549) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 375447 + ... + 379660.

It is an arithmetic number, because the mean of its divisors is an integer number (157817572).

Almost surely, 2^1591010449 is an apocalyptic number.

It is an amenable number.

1591010449 is a deficient number, since it is larger than the sum of its proper divisors (302800415).

1591010449 is an equidigital number, since it uses as much as digits as its factorization.

1591010449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755164 (or 755157 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 1591010449 is about 39887.4723315479. The cubic root of 1591010449 is about 1167.4125128591.

The spelling of 1591010449 in words is "one billion, five hundred ninety-one million, ten thousand, four hundred forty-nine".