1406051613 has 12 divisors (see below), whose sum is σ = 2058785820. Its totient is φ = 924526656.

The previous prime is 1406051587. The next prime is 1406051627. The reversal of 1406051613 is 3161506041.

1406051613 is a `hidden beast` number, since 1 + 40 + 6 + 0 + 5 + 1 + 613 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1111688964 + 294362649 = 33342^2 + 17157^2 .

It is not a de Polignac number, because 1406051613 - 2¹⁰ = 1406050589 is a prime.

It is a super-2 number, since 2×1406051613² = 3953962276839803538, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1406051653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1069398 + ... + 1070711.

It is an arithmetic number, because the mean of its divisors is an integer number (171565485).

Almost surely, 2^1406051613 is an apocalyptic number.

It is an amenable number.

1406051613 is a deficient number, since it is larger than the sum of its proper divisors (652734207).

1406051613 is a wasteful number, since it uses less digits than its factorization.

1406051613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2140188 (or 2140185 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1406051613 is about 37497.3547467018. The cubic root of 1406051613 is about 1120.2984995724.

Adding to 1406051613 its reverse (3161506041), we get a palindrome (4567557654).

The spelling of 1406051613 in words is "one billion, four hundred six million, fifty-one thousand, six hundred thirteen".