1413665161 has 4 divisors (see below), whose sum is σ = 1417739472. Its totient is φ = 1409590852.

The previous prime is 1413665129. The next prime is 1413665173. The reversal of 1413665161 is 1615663141.

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 1413665161 - 2⁵ = 1413665129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1413665111) 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, 2036635 + ... + 2037328.

It is an arithmetic number, because the mean of its divisors is an integer number (354434868).

Almost surely, 2^1413665161 is an apocalyptic number.

It is an amenable number.

1413665161 is a deficient number, since it is larger than the sum of its proper divisors (4074311).

1413665161 is an equidigital number, since it uses as much as digits as its factorization.

1413665161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4074310.

The product of its digits is 12960, while the sum is 34.

The square root of 1413665161 is about 37598.7388219339. The cubic root of 1413665161 is about 1122.3169407318.

It can be divided in two parts, 14136 and 65161, that added together give a palindrome (79297).

The spelling of 1413665161 in words is "one billion, four hundred thirteen million, six hundred sixty-five thousand, one hundred sixty-one".