1313173154 has 4 divisors (see below), whose sum is σ = 1969759734. Its totient is φ = 656586576.

The previous prime is 1313173153. The next prime is 1313173181. The reversal of 1313173154 is 4513713131.

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

It can be written as a sum of positive squares in only one way, i.e., 1308485929 + 4687225 = 36173^2 + 2165^2 .

It is not an unprimeable number, because it can be changed into a prime (1313173153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328293287 + ... + 328293290.

Almost surely, 2^1313173154 is an apocalyptic number.

1313173154 is a deficient number, since it is larger than the sum of its proper divisors (656586580).

1313173154 is an equidigital number, since it uses as much as digits as its factorization.

1313173154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656586579.

The product of its digits is 3780, while the sum is 29.

The square root of 1313173154 is about 36237.7310823953. The cubic root of 1313173154 is about 1095.0669333508.

Adding to 1313173154 its reverse (4513713131), we get a palindrome (5826886285).

The spelling of 1313173154 in words is "one billion, three hundred thirteen million, one hundred seventy-three thousand, one hundred fifty-four".