1406815361 has 4 divisors (see below), whose sum is σ = 1607788992. Its totient is φ = 1205841732.

The previous prime is 1406815337. The next prime is 1406815387. The reversal of 1406815361 is 1635186041.

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 1406815361 - 2¹⁸ = 1406553217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1406815321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100486805 + ... + 100486818.

It is an arithmetic number, because the mean of its divisors is an integer number (401947248).

Almost surely, 2^1406815361 is an apocalyptic number.

It is an amenable number.

1406815361 is a deficient number, since it is larger than the sum of its proper divisors (200973631).

1406815361 is an equidigital number, since it uses as much as digits as its factorization.

1406815361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200973630.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 1406815361 is about 37507.5373891702. The cubic root of 1406815361 is about 1120.5013064622.

The spelling of 1406815361 in words is "one billion, four hundred six million, eight hundred fifteen thousand, three hundred sixty-one".