1144349971 has 4 divisors (see below), whose sum is σ = 1160026072. Its totient is φ = 1128673872.

The previous prime is 1144349963. The next prime is 1144350001. The reversal of 1144349971 is 1799434411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1144349971 - 2³ = 1144349963 is a prime.

It is a super-2 number, since 2×1144349971² = 2619073712255401682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144349771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7837941 + ... + 7838086.

It is an arithmetic number, because the mean of its divisors is an integer number (290006518).

Almost surely, 2^1144349971 is an apocalyptic number.

1144349971 is a deficient number, since it is larger than the sum of its proper divisors (15676101).

1144349971 is an equidigital number, since it uses as much as digits as its factorization.

1144349971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15676100.

The product of its digits is 108864, while the sum is 43.

The square root of 1144349971 is about 33828.2422097277. The cubic root of 1144349971 is about 1045.9709452962.

The spelling of 1144349971 in words is "one billion, one hundred forty-four million, three hundred forty-nine thousand, nine hundred seventy-one".