64297145 has 16 divisors (see below), whose sum is σ = 89123328. Its totient is φ = 44010240.

The previous prime is 64297141. The next prime is 64297199. The reversal of 64297145 is 54179246.

It is not a de Polignac number, because 64297145 - 2² = 64297141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64297099 and 64297108.

It is not an unprimeable number, because it can be changed into a prime (64297141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33449 + ... + 35318.

It is an arithmetic number, because the mean of its divisors is an integer number (5570208).

Almost surely, 2^64297145 is an apocalyptic number.

It is an amenable number.

64297145 is a deficient number, since it is larger than the sum of its proper divisors (24826183).

64297145 is a wasteful number, since it uses less digits than its factorization.

64297145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68800.

The product of its digits is 60480, while the sum is 38.

The square root of 64297145 is about 8018.5500559640. The cubic root of 64297145 is about 400.6180964832.

The spelling of 64297145 in words is "sixty-four million, two hundred ninety-seven thousand, one hundred forty-five".