1316601225 has 81 divisors (see below), whose sum is σ = 2458760629. Its totient is φ = 673449600.

The previous prime is 1316601211. The next prime is 1316601241. The reversal of 1316601225 is 5221066131.

The square root of 1316601225 is 36285.

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

1316601225 is a `hidden beast` number, since 1 + 31 + 6 + 601 + 2 + 25 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 554178681 + 762422544 = 23541^2 + 27612^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1316601225 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 22315246 + ... + 22315304.

Almost surely, 2^1316601225 is an apocalyptic number.

1316601225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1316601225 is the 36285-th square number.

1316601225 is the 18143-rd centered octagonal number.

It is an amenable number.

1316601225 is a deficient number, since it is larger than the sum of its proper divisors (1142159404).

1316601225 is an equidigital number, since it uses as much as digits as its factorization.

1316601225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The cubic root of 1316601225 is about 1096.0190051338.

Adding to 1316601225 its reverse (5221066131), we get a palindrome (6537667356).

The spelling of 1316601225 in words is "one billion, three hundred sixteen million, six hundred one thousand, two hundred twenty-five".