64143458 has 8 divisors (see below), whose sum is σ = 100398528. Its totient is φ = 30677284.

The previous prime is 64143427. The next prime is 64143467. The reversal of 64143458 is 85434146.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×64143458² = 8228766408395528, which contains 22 as substring.

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 in 3 ways as a sum of consecutive naturals, for example, 697166 + ... + 697257.

It is an arithmetic number, because the mean of its divisors is an integer number (12549816).

Almost surely, 2^64143458 is an apocalyptic number.

64143458 is a deficient number, since it is larger than the sum of its proper divisors (36255070).

64143458 is a wasteful number, since it uses less digits than its factorization.

64143458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1394448.

The product of its digits is 46080, while the sum is 35.

The square root of 64143458 is about 8008.9611061610. The cubic root of 64143458 is about 400.2986478016.

The spelling of 64143458 in words is "sixty-four million, one hundred forty-three thousand, four hundred fifty-eight".