1144642051 has 4 divisors (see below), whose sum is σ = 1308162352. Its totient is φ = 981121752.

The previous prime is 1144642039. The next prime is 1144642063. The reversal of 1144642051 is 1502464411.

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

It is an interprime number because it is at equal distance from previous prime (1144642039) and next prime (1144642063).

It is a cyclic number.

It is not a de Polignac number, because 1144642051 - 2⁵ = 1144642019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1144642651) 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, 81760140 + ... + 81760153.

It is an arithmetic number, because the mean of its divisors is an integer number (327040588).

Almost surely, 2^1144642051 is an apocalyptic number.

1144642051 is a deficient number, since it is larger than the sum of its proper divisors (163520301).

1144642051 is an equidigital number, since it uses as much as digits as its factorization.

1144642051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163520300.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 1144642051 is about 33832.5590371169. The cubic root of 1144642051 is about 1046.0599277499.

The spelling of 1144642051 in words is "one billion, one hundred forty-four million, six hundred forty-two thousand, fifty-one".