64126394 has 4 divisors (see below), whose sum is σ = 96189594. Its totient is φ = 32063196.

The previous prime is 64126379. The next prime is 64126411. The reversal of 64126394 is 49362146.

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., 35557369 + 28569025 = 5963^2 + 5345^2 .

It is a super-2 number, since 2×64126394² = 8224388814886472, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16031597 + ... + 16031600.

Almost surely, 2^64126394 is an apocalyptic number.

64126394 is a deficient number, since it is larger than the sum of its proper divisors (32063200).

64126394 is a wasteful number, since it uses less digits than its factorization.

64126394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32063199.

The product of its digits is 31104, while the sum is 35.

The square root of 64126394 is about 8007.8957285919. The cubic root of 64126394 is about 400.2631476786.

The spelling of 64126394 in words is "sixty-four million, one hundred twenty-six thousand, three hundred ninety-four".