1245040365 has 8 divisors (see below), whose sum is σ = 1992064608. Its totient is φ = 664021520.

The previous prime is 1245040351. The next prime is 1245040369. The reversal of 1245040365 is 5630405421.

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

It is not a de Polignac number, because 1245040365 - 2⁵ = 1245040333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245040369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41501331 + ... + 41501360.

It is an arithmetic number, because the mean of its divisors is an integer number (249008076).

Almost surely, 2^1245040365 is an apocalyptic number.

1245040365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1245040365 is a deficient number, since it is larger than the sum of its proper divisors (747024243).

1245040365 is an equidigital number, since it uses as much as digits as its factorization.

1245040365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83002699.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 1245040365 is about 35285.1295165541. The cubic root of 1245040365 is about 1075.7907619682.

Adding to 1245040365 its reverse (5630405421), we get a palindrome (6875445786).

The spelling of 1245040365 in words is "one billion, two hundred forty-five million, forty thousand, three hundred sixty-five".