1313552241 has 16 divisors (see below), whose sum is σ = 2030613120. Its totient is φ = 837627120.

The previous prime is 1313552239. The next prime is 1313552257. The reversal of 1313552241 is 1422553131.

1313552241 is a `hidden beast` number, since 1 + 3 + 135 + 522 + 4 + 1 = 666.

It is not a de Polignac number, because 1313552241 - 2¹ = 1313552239 is a prime.

It is a super-2 number, since 2×1313552241² = 3450838979672244162, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1313552221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1056990 + ... + 1058231.

It is an arithmetic number, because the mean of its divisors is an integer number (126913320).

Almost surely, 2^1313552241 is an apocalyptic number.

It is an amenable number.

1313552241 is a deficient number, since it is larger than the sum of its proper divisors (717060879).

1313552241 is a wasteful number, since it uses less digits than its factorization.

1313552241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2115253 (or 2115247 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 1313552241 is about 36242.9612614643. The cubic root of 1313552241 is about 1095.1722979016.

The spelling of 1313552241 in words is "one billion, three hundred thirteen million, five hundred fifty-two thousand, two hundred forty-one".