1353243520 has 128 divisors (see below), whose sum is σ = 3483259200. Its totient is φ = 500858880.

The previous prime is 1353243511. The next prime is 1353243533. The reversal of 1353243520 is 253423531.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 662661 + ... + 664699.

Almost surely, 2^1353243520 is an apocalyptic number.

1353243520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1353243520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1741629600).

1353243520 is an abundant number, since it is smaller than the sum of its proper divisors (2130015680).

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

1353243520 is a wasteful number, since it uses less digits than its factorization.

1353243520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2136 (or 2124 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 1353243520 is about 36786.4583780499. The cubic root of 1353243520 is about 1106.0938698018.

The spelling of 1353243520 in words is "one billion, three hundred fifty-three million, two hundred forty-three thousand, five hundred twenty".