1406360561 has 4 divisors (see below), whose sum is σ = 1412196324. Its totient is φ = 1400524800.

The previous prime is 1406360533. The next prime is 1406360569. The reversal of 1406360561 is 1650636041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 862538161 + 543822400 = 29369^2 + 23320^2 .

It is a cyclic number.

It is not a de Polignac number, because 1406360561 - 2⁶ = 1406360497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1406360569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2917520 + ... + 2918001.

It is an arithmetic number, because the mean of its divisors is an integer number (353049081).

Almost surely, 2^1406360561 is an apocalyptic number.

It is an amenable number.

1406360561 is a deficient number, since it is larger than the sum of its proper divisors (5835763).

1406360561 is an equidigital number, since it uses as much as digits as its factorization.

1406360561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5835762.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 1406360561 is about 37501.4741176930. The cubic root of 1406360561 is about 1120.3805469715.

The spelling of 1406360561 in words is "one billion, four hundred six million, three hundred sixty thousand, five hundred sixty-one".