1005010001 has 8 divisors (see below), whose sum is σ = 1051453440. Its totient is φ = 958795552.

The previous prime is 1005009989. The next prime is 1005010003. The reversal of 1005010001 is 1000105001.

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 a de Polignac number, because none of the positive numbers 2^k-1005010001 is a prime.

It is a super-2 number, since 2×1005010001² = 2020090204220040002, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1005010003) 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, 48236 + ... + 65853.

It is an arithmetic number, because the mean of its divisors is an integer number (131431680).

Almost surely, 2^1005010001 is an apocalyptic number.

It is an amenable number.

1005010001 is a deficient number, since it is larger than the sum of its proper divisors (46443439).

1005010001 is a wasteful number, since it uses less digits than its factorization.

1005010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114495.

The product of its (nonzero) digits is 5, while the sum is 8.

The square root of 1005010001 is about 31701.8927037488. The cubic root of 1005010001 is about 1001.6672191688.

Adding to 1005010001 its reverse (1000105001), we get a palindrome (2005115002).

The spelling of 1005010001 in words is "one billion, five million, ten thousand, one".