1245140165 has 8 divisors (see below), whose sum is σ = 1496585760. Its totient is φ = 994500432.

The previous prime is 1245140159. The next prime is 1245140219. The reversal of 1245140165 is 5610415421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1245140165 - 2⁶ = 1245140101 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198059 + ... + 204248.

It is an arithmetic number, because the mean of its divisors is an integer number (187073220).

Almost surely, 2^1245140165 is an apocalyptic number.

It is an amenable number.

1245140165 is a deficient number, since it is larger than the sum of its proper divisors (251445595).

1245140165 is an equidigital number, since it uses as much as digits as its factorization.

1245140165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402931.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 1245140165 is about 35286.5436816926. The cubic root of 1245140165 is about 1075.8195056279.

Adding to 1245140165 its reverse (5610415421), we get a palindrome (6855555586).

The spelling of 1245140165 in words is "one billion, two hundred forty-five million, one hundred forty thousand, one hundred sixty-five".