1305153053 has 4 divisors (see below), whose sum is σ = 1381926780. Its totient is φ = 1228379328.

The previous prime is 1305153023. The next prime is 1305153061. The reversal of 1305153053 is 3503515031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3503515031 = 47 ⋅74542873.

It can be written as a sum of positive squares in 2 ways, for example, as 528862009 + 776291044 = 22997^2 + 27862^2 .

It is a cyclic number.

It is not a de Polignac number, because 1305153053 - 2¹⁶ = 1305087517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1305153023) 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, 38386838 + ... + 38386871.

It is an arithmetic number, because the mean of its divisors is an integer number (345481695).

Almost surely, 2^1305153053 is an apocalyptic number.

It is an amenable number.

1305153053 is a deficient number, since it is larger than the sum of its proper divisors (76773727).

1305153053 is an equidigital number, since it uses as much as digits as its factorization.

1305153053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76773726.

The product of its (nonzero) digits is 3375, while the sum is 26.

The square root of 1305153053 is about 36126.9020675729. The cubic root of 1305153053 is about 1092.8330345271.

Adding to 1305153053 its reverse (3503515031), we get a palindrome (4808668084).

The spelling of 1305153053 in words is "one billion, three hundred five million, one hundred fifty-three thousand, fifty-three".