1375297225 has 9 divisors (see below), whose sum is σ = 1705598517. Its totient is φ = 1100089440.

The previous prime is 1375297111. The next prime is 1375297241. The reversal of 1375297225 is 5227925731.

The square root of 1375297225 is 37085.

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 53538489 + 1321758736 = 7317^2 + 36356^2 .

It is not a de Polignac number, because 1375297225 - 2¹¹ = 1375295177 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, 181717 + ... + 189133.

Almost surely, 2^1375297225 is an apocalyptic number.

1375297225 is the 37085-th square number.

1375297225 is the 18543-rd centered octagonal number.

It is an amenable number.

1375297225 is a deficient number, since it is larger than the sum of its proper divisors (330301292).

1375297225 is an frugal number, since it uses more digits than its factorization.

1375297225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14844 (or 7422 counting only the distinct ones).

The product of its digits is 264600, while the sum is 43.

The cubic root of 1375297225 is about 1112.0701634493.

The spelling of 1375297225 in words is "one billion, three hundred seventy-five million, two hundred ninety-seven thousand, two hundred twenty-five".