1536397265 has 16 divisors (see below), whose sum is σ = 1987252176. Its totient is φ = 1133568000.

The previous prime is 1536397199. The next prime is 1536397283. The reversal of 1536397265 is 5627936351.

It can be written as a sum of positive squares in 8 ways, for example, as 143017681 + 1393379584 = 11959^2 + 37328^2 .

It is not a de Polignac number, because 1536397265 - 2¹⁰ = 1536396241 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68225 + ... + 87905.

It is an arithmetic number, because the mean of its divisors is an integer number (124203261).

Almost surely, 2^1536397265 is an apocalyptic number.

It is an amenable number.

1536397265 is a deficient number, since it is larger than the sum of its proper divisors (450854911).

1536397265 is a wasteful number, since it uses less digits than its factorization.

1536397265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20900.

The product of its digits is 1020600, while the sum is 47.

The square root of 1536397265 is about 39196.9037680274. The cubic root of 1536397265 is about 1153.8991190735.

The spelling of 1536397265 in words is "one billion, five hundred thirty-six million, three hundred ninety-seven thousand, two hundred sixty-five".