64200261 has 8 divisors (see below), whose sum is σ = 87421824. Its totient is φ = 41889440.

The previous prime is 64200233. The next prime is 64200277. The reversal of 64200261 is 16200246.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64200261 - 2⁶ = 64200197 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64201261) 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, 227520 + ... + 227801.

It is an arithmetic number, because the mean of its divisors is an integer number (10927728).

Almost surely, 2^64200261 is an apocalyptic number.

It is an amenable number.

64200261 is a deficient number, since it is larger than the sum of its proper divisors (23221563).

64200261 is a wasteful number, since it uses less digits than its factorization.

64200261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455371.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 64200261 is about 8012.5065366588. The cubic root of 64200261 is about 400.4167760102.

The spelling of 64200261 in words is "sixty-four million, two hundred thousand, two hundred sixty-one".