64143346 has 8 divisors (see below), whose sum is σ = 101874780. Its totient is φ = 30185088.

The previous prime is 64143337. The next prime is 64143347. The reversal of 64143346 is 64334146.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 63824121 + 319225 = 7989^2 + 565^2 .

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

It is a super-2 number, since 2×64143346² = 8228737672151432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64143347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 943251 + ... + 943318.

Almost surely, 2^64143346 is an apocalyptic number.

64143346 is a deficient number, since it is larger than the sum of its proper divisors (37731434).

64143346 is a wasteful number, since it uses less digits than its factorization.

64143346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1886588.

The product of its digits is 20736, while the sum is 31.

The square root of 64143346 is about 8008.9541139902. The cubic root of 64143346 is about 400.2984148161.

The spelling of 64143346 in words is "sixty-four million, one hundred forty-three thousand, three hundred forty-six".