64135245 has 32 divisors (see below), whose sum is σ = 106900992. Its totient is φ = 32804352.

The previous prime is 64135243. The next prime is 64135259. The reversal of 64135245 is 54253146.

It is not a de Polignac number, because 64135245 - 2¹ = 64135243 is a prime.

It is a super-2 number, since 2×64135245² = 8226659302420050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64135243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39724 + ... + 41306.

It is an arithmetic number, because the mean of its divisors is an integer number (3340656).

Almost surely, 2^64135245 is an apocalyptic number.

It is an amenable number.

64135245 is a deficient number, since it is larger than the sum of its proper divisors (42765747).

64135245 is a wasteful number, since it uses less digits than its factorization.

64135245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701.

The product of its digits is 14400, while the sum is 30.

The square root of 64135245 is about 8008.4483515847. The cubic root of 64135245 is about 400.2815621770.

The spelling of 64135245 in words is "sixty-four million, one hundred thirty-five thousand, two hundred forty-five".