1300745985 has 64 divisors (see below), whose sum is σ = 2731345920. Its totient is φ = 512110080.

The previous prime is 1300745983. The next prime is 1300746043. The reversal of 1300745985 is 5895470031.

It is not a de Polignac number, because 1300745985 - 2¹ = 1300745983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1300745983) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7692 + ... + 51581.

It is an arithmetic number, because the mean of its divisors is an integer number (42677280).

Almost surely, 2^1300745985 is an apocalyptic number.

1300745985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1300745985 is an abundant number, since it is smaller than the sum of its proper divisors (1430599935).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1300745985 is a wasteful number, since it uses less digits than its factorization.

1300745985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59318.

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 1300745985 is about 36065.8562216399. The cubic root of 1300745985 is about 1091.6016028144.

The spelling of 1300745985 in words is "one billion, three hundred million, seven hundred forty-five thousand, nine hundred eighty-five".