1001147801 has 8 divisors (see below), whose sum is σ = 1025121504. Its totient is φ = 977205600.

The previous prime is 1001147761. The next prime is 1001147809. The reversal of 1001147801 is 1087411001.

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 1001147801 - 2⁶ = 1001147737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001147809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64226 + ... + 78276.

It is an arithmetic number, because the mean of its divisors is an integer number (128140188).

Almost surely, 2^1001147801 is an apocalyptic number.

It is an amenable number.

1001147801 is a deficient number, since it is larger than the sum of its proper divisors (23973703).

1001147801 is a wasteful number, since it uses less digits than its factorization.

1001147801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15751.

The product of its (nonzero) digits is 224, while the sum is 23.

The square root of 1001147801 is about 31640.9197243064. The cubic root of 1001147801 is about 1000.3824540436.

Adding to 1001147801 its reverse (1087411001), we get a palindrome (2088558802).

The spelling of 1001147801 in words is "one billion, one million, one hundred forty-seven thousand, eight hundred one".