1406211113 has 4 divisors (see below), whose sum is σ = 1406858640. Its totient is φ = 1405563588.

The previous prime is 1406211097. The next prime is 1406211127. The reversal of 1406211113 is 3111126041.

It is a happy number.

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 1406211113 - 2⁴ = 1406211097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1406211193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320495 + ... + 324852.

It is an arithmetic number, because the mean of its divisors is an integer number (351714660).

Almost surely, 2^1406211113 is an apocalyptic number.

It is an amenable number.

1406211113 is a deficient number, since it is larger than the sum of its proper divisors (647527).

1406211113 is an equidigital number, since it uses as much as digits as its factorization.

1406211113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647526.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1406211113 is about 37499.4815030821. The cubic root of 1406211113 is about 1120.3408595286.

Adding to 1406211113 its reverse (3111126041), we get a palindrome (4517337154).

The spelling of 1406211113 in words is "one billion, four hundred six million, two hundred eleven thousand, one hundred thirteen".