1353465520 has 40 divisors (see below), whose sum is σ = 3432882960. Its totient is φ = 492168960.

The previous prime is 1353465517. The next prime is 1353465527. The reversal of 1353465520 is 255643531.

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

It is not an unprimeable number, because it can be changed into a prime (1353465527) 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, 768135 + ... + 769894.

It is an arithmetic number, because the mean of its divisors is an integer number (85822074).

Almost surely, 2^1353465520 is an apocalyptic number.

1353465520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1353465520 is an abundant number, since it is smaller than the sum of its proper divisors (2079417440).

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

1353465520 is a wasteful number, since it uses less digits than its factorization.

1353465520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1538053 (or 1538047 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 34.

The square root of 1353465520 is about 36789.4756690008. The cubic root of 1353465520 is about 1106.1543515034.

The spelling of 1353465520 in words is "one billion, three hundred fifty-three million, four hundred sixty-five thousand, five hundred twenty".