64635154 has 4 divisors (see below), whose sum is σ = 96952734. Its totient is φ = 32317576.

The previous prime is 64635133. The next prime is 64635163. The reversal of 64635154 is 45153646.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 59675625 + 4959529 = 7725^2 + 2227^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16158787 + ... + 16158790.

Almost surely, 2^64635154 is an apocalyptic number.

64635154 is a deficient number, since it is larger than the sum of its proper divisors (32317580).

64635154 is a wasteful number, since it uses less digits than its factorization.

64635154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32317579.

The product of its digits is 43200, while the sum is 34.

The square root of 64635154 is about 8039.5991193591. The cubic root of 64635154 is about 401.3188840825.

The spelling of 64635154 in words is "sixty-four million, six hundred thirty-five thousand, one hundred fifty-four".