1302540053 has 4 divisors (see below), whose sum is σ = 1305480768. Its totient is φ = 1299599340.

The previous prime is 1302540037. The next prime is 1302540073. The reversal of 1302540053 is 3500452031.

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 1302540053 - 2⁴ = 1302540037 is a prime.

It is a super-2 number, since 2×1302540053² = 3393221179338485618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1302540013) 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, 1469693 + ... + 1470578.

It is an arithmetic number, because the mean of its divisors is an integer number (326370192).

Almost surely, 2^1302540053 is an apocalyptic number.

It is an amenable number.

1302540053 is a deficient number, since it is larger than the sum of its proper divisors (2940715).

1302540053 is an equidigital number, since it uses as much as digits as its factorization.

1302540053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2940714.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 1302540053 is about 36090.7197628421. The cubic root of 1302540053 is about 1092.1032400368.

Adding to 1302540053 its reverse (3500452031), we get a palindrome (4802992084).

The spelling of 1302540053 in words is "one billion, three hundred two million, five hundred forty thousand, fifty-three".