1049140081 has 16 divisors (see below), whose sum is σ = 1209297600. Its totient is φ = 900158400.

The previous prime is 1049140073. The next prime is 1049140117. The reversal of 1049140081 is 1800419401.

It is a cyclic number.

It is not a de Polignac number, because 1049140081 - 2³ = 1049140073 is a prime.

It is a super-2 number, since 2×1049140081² = 2201389819121373122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1049140031) 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, 46891 + ... + 65551.

It is an arithmetic number, because the mean of its divisors is an integer number (75581100).

Almost surely, 2^1049140081 is an apocalyptic number.

1049140081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1049140081 is a deficient number, since it is larger than the sum of its proper divisors (160157519).

1049140081 is a wasteful number, since it uses less digits than its factorization.

1049140081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18960.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 1049140081 is about 32390.4319359900. The cubic root of 1049140081 is about 1016.1188148320.

Adding to 1049140081 its reverse (1800419401), we get a palindrome (2849559482).

The spelling of 1049140081 in words is "one billion, forty-nine million, one hundred forty thousand, eighty-one".