1302531451225 has 9 divisors (see below), whose sum is σ = 1615146075517. Its totient is φ = 1042020595840.

The previous prime is 1302531451211. The next prime is 1302531451297. The reversal of 1302531451225 is 5221541352031.

The square root of 1302531451225 is 1141285.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 268901362249 + 1033630088976 = 518557^2 + 1016676^2 .

It is not a de Polignac number, because 1302531451225 - 2¹⁵ = 1302531418457 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5592297 + ... + 5820553.

Almost surely, 2^{1302531451225} is an apocalyptic number.

1302531451225 is the 1141285-th square number.

1302531451225 is the 570643-rd centered octagonal number.

It is an amenable number.

1302531451225 is a deficient number, since it is larger than the sum of its proper divisors (312614624292).

1302531451225 is an frugal number, since it uses more digits than its factorization.

1302531451225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456524 (or 228262 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

The spelling of 1302531451225 in words is "one trillion, three hundred two billion, five hundred thirty-one million, four hundred fifty-one thousand, two hundred twenty-five".