1135445520 has 80 divisors (see below), whose sum is σ = 3839879232. Its totient is φ = 275258880.

The previous prime is 1135445489. The next prime is 1135445543. The reversal of 1135445520 is 255445311.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 212407 + ... + 217686.

Almost surely, 2^1135445520 is an apocalyptic number.

1135445520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1135445520 is an abundant number, since it is smaller than the sum of its proper divisors (2704433712).

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

1135445520 is a wasteful number, since it uses less digits than its factorization.

1135445520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430120 (or 430114 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 1135445520 is about 33696.3725050635. The cubic root of 1135445520 is about 1043.2508975709.

The spelling of 1135445520 in words is "one billion, one hundred thirty-five million, four hundred forty-five thousand, five hundred twenty".