1305137055 has 16 divisors (see below), whose sum is σ = 2090231424. Its totient is φ = 695402400.

The previous prime is 1305137033. The next prime is 1305137059. The reversal of 1305137055 is 5507315031.

It is not a de Polignac number, because 1305137055 - 2⁵ = 1305137023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1305137059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25629 + ... + 57158.

It is an arithmetic number, because the mean of its divisors is an integer number (130639464).

Almost surely, 2^1305137055 is an apocalyptic number.

1305137055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1305137055 is a deficient number, since it is larger than the sum of its proper divisors (785094369).

1305137055 is a wasteful number, since it uses less digits than its factorization.

1305137055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83846.

The product of its (nonzero) digits is 7875, while the sum is 30.

The square root of 1305137055 is about 36126.6806529468. The cubic root of 1305137055 is about 1092.8285693511.

The spelling of 1305137055 in words is "one billion, three hundred five million, one hundred thirty-seven thousand, fifty-five".