1144809061 has 16 divisors (see below), whose sum is σ = 1304875008. Its totient is φ = 994193200.

The previous prime is 1144809049. The next prime is 1144809091. The reversal of 1144809061 is 1609084411.

It is not a de Polignac number, because 1144809061 - 2⁷ = 1144808933 is a prime.

It is a super-2 number, since 2×1144809061² = 2621175572295403442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144809091) 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, 228000 + ... + 232966.

It is an arithmetic number, because the mean of its divisors is an integer number (81554688).

Almost surely, 2^1144809061 is an apocalyptic number.

1144809061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1144809061 is a deficient number, since it is larger than the sum of its proper divisors (160065947).

1144809061 is a wasteful number, since it uses less digits than its factorization.

1144809061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5912.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 1144809061 is about 33835.0271316575. The cubic root of 1144809061 is about 1046.1108007055.

The spelling of 1144809061 in words is "one billion, one hundred forty-four million, eight hundred nine thousand, sixty-one".