1401006001 has 4 divisors (see below), whose sum is σ = 1402892352. Its totient is φ = 1399119652.

The previous prime is 1401005981. The next prime is 1401006007. The reversal of 1401006001 is 1006001041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1401006001 - 2¹⁷ = 1400874929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1401006007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 942061 + ... + 943546.

It is an arithmetic number, because the mean of its divisors is an integer number (350723088).

Almost surely, 2^1401006001 is an apocalyptic number.

It is an amenable number.

1401006001 is a deficient number, since it is larger than the sum of its proper divisors (1886351).

1401006001 is an equidigital number, since it uses as much as digits as its factorization.

1401006001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1886350.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1401006001 is about 37430.0147074510. The cubic root of 1401006001 is about 1118.9568308293.

Adding to 1401006001 its reverse (1006001041), we get a palindrome (2407007042).

The spelling of 1401006001 in words is "one billion, four hundred one million, six thousand, one".