1049543915 has 16 divisors (see below), whose sum is σ = 1442546112. Its totient is φ = 718101504.

The previous prime is 1049543903. The next prime is 1049543921. The reversal of 1049543915 is 5193459401.

It is a cyclic number.

It is not a de Polignac number, because 1049543915 - 2⁴ = 1049543899 is a prime.

It is a super-2 number, since 2×1049543915² = 2203084859027054450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16814 + ... + 48803.

It is an arithmetic number, because the mean of its divisors is an integer number (90159132).

Almost surely, 2^1049543915 is an apocalyptic number.

1049543915 is a deficient number, since it is larger than the sum of its proper divisors (393002197).

1049543915 is an equidigital number, since it uses as much as digits as its factorization.

1049543915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66086.

The product of its (nonzero) digits is 97200, while the sum is 41.

The square root of 1049543915 is about 32396.6651833179. The cubic root of 1049543915 is about 1016.2491726030.

The spelling of 1049543915 in words is "one billion, forty-nine million, five hundred forty-three thousand, nine hundred fifteen".