64531141 has 8 divisors (see below), whose sum is σ = 66648960. Its totient is φ = 62444448.

The previous prime is 64531109. The next prime is 64531151. The reversal of 64531141 is 14113546.

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 64531141 - 2⁵ = 64531109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64531151) 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, 3531 + ... + 11896.

It is an arithmetic number, because the mean of its divisors is an integer number (8331120).

Almost surely, 2^64531141 is an apocalyptic number.

It is an amenable number.

64531141 is a deficient number, since it is larger than the sum of its proper divisors (2117819).

64531141 is a wasteful number, since it uses less digits than its factorization.

64531141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15563.

The product of its digits is 1440, while the sum is 25.

The square root of 64531141 is about 8033.1277221267. The cubic root of 64531141 is about 401.1034966882.

Adding to 64531141 its reverse (14113546), we get a palindrome (78644687).

The spelling of 64531141 in words is "sixty-four million, five hundred thirty-one thousand, one hundred forty-one".