1405001 has 16 divisors (see below), whose sum is σ = 1634304. Its totient is φ = 1197504.

The previous prime is 1404989. The next prime is 1405007. The reversal of 1405001 is 1005041.

It is a cyclic number.

It is not a de Polignac number, because 1405001 - 2⁶ = 1404937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1405007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11000 + ... + 11126.

It is an arithmetic number, because the mean of its divisors is an integer number (102144).

2^1405001 is an apocalyptic number.

It is an amenable number.

1405001 is a deficient number, since it is larger than the sum of its proper divisors (229303).

1405001 is a wasteful number, since it uses less digits than its factorization.

1405001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 1405001 is about 1185.3273809374. The cubic root of 1405001 is about 112.0019398048.

The spelling of 1405001 in words is "one million, four hundred five thousand, one".