1145644001 has 8 divisors (see below), whose sum is σ = 1162800000. Its totient is φ = 1128516480.

The previous prime is 1145643997. The next prime is 1145644009. The reversal of 1145644001 is 1004465411.

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 1145644001 - 2² = 1145643997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1145644009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82220 + ... + 95138.

It is an arithmetic number, because the mean of its divisors is an integer number (145350000).

Almost surely, 2^1145644001 is an apocalyptic number.

It is an amenable number.

1145644001 is a deficient number, since it is larger than the sum of its proper divisors (17155999).

1145644001 is a wasteful number, since it uses less digits than its factorization.

1145644001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14239.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 1145644001 is about 33847.3632798775. The cubic root of 1145644001 is about 1046.3650578058.

The spelling of 1145644001 in words is "one billion, one hundred forty-five million, six hundred forty-four thousand, one".