1300455405 has 20 divisors (see below), whose sum is σ = 2331187452. Its totient is φ = 693576000.

The previous prime is 1300455379. The next prime is 1300455427. The reversal of 1300455405 is 5045540031.

It can be written as a sum of positive squares in 2 ways, for example, as 354154761 + 946300644 = 18819^2 + 30762^2 .

It is not a de Polignac number, because 1300455405 - 2⁹ = 1300454893 is a prime.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1605096 + ... + 1605905.

Almost surely, 2^1300455405 is an apocalyptic number.

1300455405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1300455405 is a deficient number, since it is larger than the sum of its proper divisors (1030732047).

1300455405 is an equidigital number, since it uses as much as digits as its factorization.

1300455405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3211018 (or 3211009 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 1300455405 is about 36061.8275327250. The cubic root of 1300455405 is about 1091.5203106891.

Adding to 1300455405 its reverse (5045540031), we get a palindrome (6345995436).

The spelling of 1300455405 in words is "one billion, three hundred million, four hundred fifty-five thousand, four hundred five".