1245310320 has 40 divisors (see below), whose sum is σ = 3860462736. Its totient is φ = 332082688.

The previous prime is 1245310291. The next prime is 1245310349. The reversal of 1245310320 is 230135421.

1245310320 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1245310291) and next prime (1245310349).

It is a tau number, because it is divible by the number of its divisors (40).

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, 2594157 + ... + 2594636.

Almost surely, 2^1245310320 is an apocalyptic number.

1245310320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1245310320 is an abundant number, since it is smaller than the sum of its proper divisors (2615152416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1245310320 is a wasteful number, since it uses less digits than its factorization.

1245310320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5188809 (or 5188803 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1245310320 is about 35288.9546458945. The cubic root of 1245310320 is about 1075.8685088740.

Adding to 1245310320 its reverse (230135421), we get a palindrome (1475445741).

The spelling of 1245310320 in words is "one billion, two hundred forty-five million, three hundred ten thousand, three hundred twenty".