1144658401 has 8 divisors (see below), whose sum is σ = 1210079520. Its totient is φ = 1079754912.

The previous prime is 1144658393. The next prime is 1144658407. The reversal of 1144658401 is 1048564411.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1144658401 - 2³ = 1144658393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144658407) 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 7 ways as a sum of consecutive naturals, for example, 124855 + ... + 133708.

It is an arithmetic number, because the mean of its divisors is an integer number (151259940).

Almost surely, 2^1144658401 is an apocalyptic number.

It is an amenable number.

1144658401 is a deficient number, since it is larger than the sum of its proper divisors (65421119).

1144658401 is a wasteful number, since it uses less digits than its factorization.

1144658401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258815.

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 1144658401 is about 33832.8006673997. The cubic root of 1144658401 is about 1046.0649083458.

The spelling of 1144658401 in words is "one billion, one hundred forty-four million, six hundred fifty-eight thousand, four hundred one".