1310253520 has 40 divisors (see below), whose sum is σ = 3074829984. Its totient is φ = 519199872.

The previous prime is 1310253517. The next prime is 1310253551. The reversal of 1310253520 is 253520131.

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

It is a junction number, because it is equal to n+sod(n) for n = 1310253491 and 1310253500.

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 7 ways as a sum of consecutive naturals, for example, 67974 + ... + 85093.

Almost surely, 2^1310253520 is an apocalyptic number.

1310253520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1310253520 is an abundant number, since it is smaller than the sum of its proper divisors (1764576464).

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

1310253520 is a wasteful number, since it uses less digits than its factorization.

1310253520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153187 (or 153181 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 1310253520 is about 36197.4242177534. The cubic root of 1310253520 is about 1094.2547614350.

Adding to 1310253520 its reverse (253520131), we get a palindrome (1563773651).

The spelling of 1310253520 in words is "one billion, three hundred ten million, two hundred fifty-three thousand, five hundred twenty".