65541140 has 24 divisors (see below), whose sum is σ = 157299072. Its totient is φ = 22471200.

The previous prime is 65541139. The next prime is 65541143. The reversal of 65541140 is 4114556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65541143) 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, 233936 + ... + 234215.

It is an arithmetic number, because the mean of its divisors is an integer number (6554128).

Almost surely, 2^65541140 is an apocalyptic number.

It is an amenable number.

65541140 is an abundant number, since it is smaller than the sum of its proper divisors (91757932).

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

65541140 is a wasteful number, since it uses less digits than its factorization.

65541140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468167 (or 468165 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 65541140 is about 8095.7482668374. The cubic root of 65541140 is about 403.1852760459.

Adding to 65541140 its reverse (4114556), we get a palindrome (69655696).

The spelling of 65541140 in words is "sixty-five million, five hundred forty-one thousand, one hundred forty".