64785141 has 6 divisors (see below), whose sum is σ = 93578550. Its totient is φ = 43190088.

The previous prime is 64785139. The next prime is 64785143. The reversal of 64785141 is 14158746.

It is a happy number.

64785141 is a `hidden beast` number, since 647 + 8 + 5 + 1 + 4 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (64785139) and next prime (64785143).

It can be written as a sum of positive squares in only one way, i.e., 57608100 + 7177041 = 7590^2 + 2679^2 .

It is not a de Polignac number, because 64785141 - 2¹ = 64785139 is a prime.

It is a super-2 number, since 2×64785141² = 8394228988779762, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64785096 and 64785105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64785143) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3599166 + ... + 3599183.

It is an arithmetic number, because the mean of its divisors is an integer number (15596425).

Almost surely, 2^64785141 is an apocalyptic number.

It is an amenable number.

64785141 is a deficient number, since it is larger than the sum of its proper divisors (28793409).

64785141 is a wasteful number, since it uses less digits than its factorization.

64785141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7198355 (or 7198352 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 64785141 is about 8048.9217290268. The cubic root of 64785141 is about 401.6290667635.

The spelling of 64785141 in words is "sixty-four million, seven hundred eighty-five thousand, one hundred forty-one".