64061245 has 8 divisors (see below), whose sum is σ = 78951384. Its totient is φ = 49863744.

The previous prime is 64061243. The next prime is 64061251. The reversal of 64061245 is 54216046.

It can be written as a sum of positive squares in 4 ways, for example, as 24383844 + 39677401 = 4938^2 + 6299^2 .

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 64061245 - 2¹ = 64061243 is a prime.

It is a super-2 number, since 2×64061245² = 8207686221900050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64061243) 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, 172954 + ... + 173323.

It is an arithmetic number, because the mean of its divisors is an integer number (9868923).

Almost surely, 2^64061245 is an apocalyptic number.

It is an amenable number.

64061245 is a deficient number, since it is larger than the sum of its proper divisors (14890139).

64061245 is a wasteful number, since it uses less digits than its factorization.

64061245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346319.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 64061245 is about 8003.8268971786. The cubic root of 64061245 is about 400.1275530712.

The spelling of 64061245 in words is "sixty-four million, sixty-one thousand, two hundred forty-five".