1314531161 has 4 divisors (see below), whose sum is σ = 1356935424. Its totient is φ = 1272126900.

The previous prime is 1314531149. The next prime is 1314531233. The reversal of 1314531161 is 1611354131.

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 1314531161 - 2¹⁸ = 1314269017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1314531161.

It is not an unprimeable number, because it can be changed into a prime (1314531461) 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, 21202085 + ... + 21202146.

It is an arithmetic number, because the mean of its divisors is an integer number (339233856).

Almost surely, 2^1314531161 is an apocalyptic number.

It is an amenable number.

1314531161 is a deficient number, since it is larger than the sum of its proper divisors (42404263).

1314531161 is an equidigital number, since it uses as much as digits as its factorization.

1314531161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42404262.

The product of its digits is 1080, while the sum is 26.

The square root of 1314531161 is about 36256.4637133850. The cubic root of 1314531161 is about 1095.4442880618. Note that the first 3 decimals are identical.

Adding to 1314531161 its reverse (1611354131), we get a palindrome (2925885292).

The spelling of 1314531161 in words is "one billion, three hundred fourteen million, five hundred thirty-one thousand, one hundred sixty-one".