64245237 has 64 divisors (see below), whose sum is σ = 108380160. Its totient is φ = 33062400.

The previous prime is 64245229. The next prime is 64245239. The reversal of 64245237 is 73254246.

It is not a de Polignac number, because 64245237 - 2³ = 64245229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64245198 and 64245207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64245239) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 773998 + ... + 774080.

It is an arithmetic number, because the mean of its divisors is an integer number (1693440).

Almost surely, 2^64245237 is an apocalyptic number.

It is an amenable number.

64245237 is a deficient number, since it is larger than the sum of its proper divisors (44134923).

64245237 is a wasteful number, since it uses less digits than its factorization.

64245237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194.

The product of its digits is 40320, while the sum is 33.

The square root of 64245237 is about 8015.3126576572. The cubic root of 64245237 is about 400.5102592287.

Subtracting 64245237 from its reverse (73254246), we obtain a palindrome (9009009).

The spelling of 64245237 in words is "sixty-four million, two hundred forty-five thousand, two hundred thirty-seven".