1300155245 has 4 divisors (see below), whose sum is σ = 1560186300. Its totient is φ = 1040124192.

The previous prime is 1300155229. The next prime is 1300155251. The reversal of 1300155245 is 5425510031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 603881476 + 696273769 = 24574^2 + 26387^2 .

It is a cyclic number.

It is not a de Polignac number, because 1300155245 - 2⁴ = 1300155229 is a prime.

It is a super-2 number, since 2×1300155245² = 3380807322202020050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130015520 + ... + 130015529.

It is an arithmetic number, because the mean of its divisors is an integer number (390046575).

Almost surely, 2^1300155245 is an apocalyptic number.

It is an amenable number.

1300155245 is a deficient number, since it is larger than the sum of its proper divisors (260031055).

1300155245 is an equidigital number, since it uses as much as digits as its factorization.

1300155245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260031054.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 1300155245 is about 36057.6655511696. The cubic root of 1300155245 is about 1091.4363257647.

Adding to 1300155245 its reverse (5425510031), we get a palindrome (6725665276).

The spelling of 1300155245 in words is "one billion, three hundred million, one hundred fifty-five thousand, two hundred forty-five".