64012289 has 8 divisors (see below), whose sum is σ = 72868032. Its totient is φ = 55662640.

The previous prime is 64012253. The next prime is 64012297. The reversal of 64012289 is 98221046.

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

It is not a de Polignac number, because 64012289 - 2⁸ = 64012033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64012229) 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, 126254 + ... + 126759.

It is an arithmetic number, because the mean of its divisors is an integer number (9108504).

It is a Proth number, since it is equal to 3907 ⋅ 2¹⁴ + 1 and 3907 < 2¹⁴.

Almost surely, 2^64012289 is an apocalyptic number.

It is an amenable number.

64012289 is a deficient number, since it is larger than the sum of its proper divisors (8855743).

64012289 is a wasteful number, since it uses less digits than its factorization.

64012289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253047.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 64012289 is about 8000.7680256335. The cubic root of 64012289 is about 400.0256004448.

The spelling of 64012289 in words is "sixty-four million, twelve thousand, two hundred eighty-nine".