2001406145 has 32 divisors (see below), whose sum is σ = 2528064000. Its totient is φ = 1519015680.

The previous prime is 2001406139. The next prime is 2001406151. The reversal of 2001406145 is 5416041002.

It is an interprime number because it is at equal distance from previous prime (2001406139) and next prime (2001406151).

It is not a de Polignac number, because 2001406145 - 2¹² = 2001402049 is a prime.

It is a super-2 number, since 2×2001406145² = 8011253114487522050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2001406145.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4341215 + ... + 4341675.

It is an arithmetic number, because the mean of its divisors is an integer number (79002000).

Almost surely, 2^2001406145 is an apocalyptic number.

It is an amenable number.

2001406145 is a deficient number, since it is larger than the sum of its proper divisors (526657855).

2001406145 is a wasteful number, since it uses less digits than its factorization.

2001406145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 2001406145 is about 44737.0779667157. The cubic root of 2001406145 is about 1260.2162526701.

Adding to 2001406145 its reverse (5416041002), we get a palindrome (7417447147).

The spelling of 2001406145 in words is "two billion, one million, four hundred six thousand, one hundred forty-five".