64133343 has 8 divisors (see below), whose sum is σ = 95012400. Its totient is φ = 42755544.

The previous prime is 64133323. The next prime is 64133351. The reversal of 64133343 is 34333146.

It is not a de Polignac number, because 64133343 - 2¹³ = 64125151 is a prime.

It is a super-2 number, since 2×64133343² = 8226171368711298, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 2375309 = 64133343 / (6 + 4 + 1 + 3 + 3 + 3 + 4 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64133323) 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, 1187628 + ... + 1187681.

It is an arithmetic number, because the mean of its divisors is an integer number (11876550).

Almost surely, 2^64133343 is an apocalyptic number.

64133343 is a deficient number, since it is larger than the sum of its proper divisors (30879057).

64133343 is a wasteful number, since it uses less digits than its factorization.

64133343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2375318 (or 2375312 counting only the distinct ones).

The product of its digits is 7776, while the sum is 27.

The square root of 64133343 is about 8008.3296011091. The cubic root of 64133343 is about 400.2776052105.

Adding to 64133343 its reverse (34333146), we get a palindrome (98466489).

The spelling of 64133343 in words is "sixty-four million, one hundred thirty-three thousand, three hundred forty-three".