1260355053 has 4 divisors (see below), whose sum is σ = 1680473408. Its totient is φ = 840236700.

The previous prime is 1260355039. The next prime is 1260355067. The reversal of 1260355053 is 3505530621.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3505530621 = 3 ⋅1168510207.

It is an interprime number because it is at equal distance from previous prime (1260355039) and next prime (1260355067).

It is not a de Polignac number, because 1260355053 - 2⁵ = 1260355021 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1260355053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1260355073) 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, 210059173 + ... + 210059178.

It is an arithmetic number, because the mean of its divisors is an integer number (420118352).

Almost surely, 2^1260355053 is an apocalyptic number.

It is an amenable number.

1260355053 is a deficient number, since it is larger than the sum of its proper divisors (420118355).

1260355053 is an equidigital number, since it uses as much as digits as its factorization.

1260355053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420118354.

The product of its (nonzero) digits is 13500, while the sum is 30.

The square root of 1260355053 is about 35501.4795888847. The cubic root of 1260355053 is about 1080.1837401720.

Adding to 1260355053 its reverse (3505530621), we get a palindrome (4765885674).

The spelling of 1260355053 in words is "one billion, two hundred sixty million, three hundred fifty-five thousand, fifty-three".