1313455155 has 8 divisors (see below), whose sum is σ = 2101528272. Its totient is φ = 700509408.

The previous prime is 1313455103. The next prime is 1313455183. The reversal of 1313455155 is 5515543131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1313455155 - 2²¹ = 1311358003 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43781824 + ... + 43781853.

It is an arithmetic number, because the mean of its divisors is an integer number (262691034).

Almost surely, 2^1313455155 is an apocalyptic number.

1313455155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1313455155 is a deficient number, since it is larger than the sum of its proper divisors (788073117).

1313455155 is an equidigital number, since it uses as much as digits as its factorization.

1313455155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87563685.

The product of its digits is 22500, while the sum is 33.

The square root of 1313455155 is about 36241.6218594036. The cubic root of 1313455155 is about 1095.1453154657.

Adding to 1313455155 its reverse (5515543131), we get a palindrome (6828998286).

The spelling of 1313455155 in words is "one billion, three hundred thirteen million, four hundred fifty-five thousand, one hundred fifty-five".