1313154645 has 32 divisors (see below), whose sum is σ = 2293678080. Its totient is φ = 636229440.

The previous prime is 1313154629. The next prime is 1313154649. The reversal of 1313154645 is 5464513131.

It is a happy number.

It is not a de Polignac number, because 1313154645 - 2⁴ = 1313154629 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313154649) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 447172 + ... + 450098.

It is an arithmetic number, because the mean of its divisors is an integer number (71677440).

Almost surely, 2^1313154645 is an apocalyptic number.

1313154645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1313154645 is a deficient number, since it is larger than the sum of its proper divisors (980523435).

1313154645 is a wasteful number, since it uses less digits than its factorization.

1313154645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5665.

The product of its digits is 21600, while the sum is 33.

The square root of 1313154645 is about 36237.4756985086. The cubic root of 1313154645 is about 1095.0617883859.

Adding to 1313154645 its reverse (5464513131), we get a palindrome (6777667776).

It can be divided in two parts, 13131 and 54645, that added together give a palindrome (67776).

The spelling of 1313154645 in words is "one billion, three hundred thirteen million, one hundred fifty-four thousand, six hundred forty-five".