1146252565 has 4 divisors (see below), whose sum is σ = 1375503084. Its totient is φ = 917002048.

The previous prime is 1146252553. The next prime is 1146252581. The reversal of 1146252565 is 5652526411.

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 857728369 + 288524196 = 29287^2 + 16986^2 .

It is a cyclic number.

It is not a de Polignac number, because 1146252565 - 2²¹ = 1144155413 is a prime.

It is a super-3 number, since 3×1146252565³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114625252 + ... + 114625261.

It is an arithmetic number, because the mean of its divisors is an integer number (343875771).

Almost surely, 2^1146252565 is an apocalyptic number.

It is an amenable number.

1146252565 is a deficient number, since it is larger than the sum of its proper divisors (229250519).

1146252565 is an equidigital number, since it uses as much as digits as its factorization.

1146252565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229250518.

The product of its digits is 72000, while the sum is 37.

The square root of 1146252565 is about 33856.3519151134. The cubic root of 1146252565 is about 1046.5503007451.

Adding to 1146252565 its reverse (5652526411), we get a palindrome (6798778976).

The spelling of 1146252565 in words is "one billion, one hundred forty-six million, two hundred fifty-two thousand, five hundred sixty-five".