11545720 has 32 divisors (see below), whose sum is σ = 27507600. Its totient is φ = 4346368.

The previous prime is 11545663. The next prime is 11545727. The reversal of 11545720 is 2754511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11545727) 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, 7810 + ... + 9169.

Almost surely, 2^11545720 is an apocalyptic number.

11545720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11545720 is an abundant number, since it is smaller than the sum of its proper divisors (15961880).

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

11545720 is a wasteful number, since it uses less digits than its factorization.

11545720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17007 (or 17003 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 11545720 is about 3397.8993510697. The cubic root of 11545720 is about 226.0166014901.

The spelling of 11545720 in words is "eleven million, five hundred forty-five thousand, seven hundred twenty".