1305149500801 has 4 divisors (see below), whose sum is σ = 1305516222400. Its totient is φ = 1304782779204.

The previous prime is 1305149500783. The next prime is 1305149500813. The reversal of 1305149500801 is 1080059415031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1305149500801 - 2¹⁹ = 1305148976513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1305149501801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183355461 + ... + 183362578.

It is an arithmetic number, because the mean of its divisors is an integer number (326379055600).

Almost surely, 2^{1305149500801} is an apocalyptic number.

It is an amenable number.

1305149500801 is a deficient number, since it is larger than the sum of its proper divisors (366721599).

1305149500801 is an equidigital number, since it uses as much as digits as its factorization.

1305149500801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366721598.

The product of its (nonzero) digits is 21600, while the sum is 37.

It can be divided in two parts, 1305149 and 500801, that added together give a triangular number (1805950 = T₁₉₀₀).

The spelling of 1305149500801 in words is "one trillion, three hundred five billion, one hundred forty-nine million, five hundred thousand, eight hundred one".