64158443 has 2 divisors, whose sum is σ = 64158444. Its totient is φ = 64158442.

The previous prime is 64158389. The next prime is 64158467. The reversal of 64158443 is 34485146.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64158443 - 2¹⁴ = 64142059 is a prime.

It is a Sophie Germain prime.

It is equal to p_3793913 and since 64158443 and 3793913 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (64158473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32079221 + 32079222.

It is an arithmetic number, because the mean of its divisors is an integer number (32079222).

Almost surely, 2^64158443 is an apocalyptic number.

64158443 is a deficient number, since it is larger than the sum of its proper divisors (1).

64158443 is an equidigital number, since it uses as much as digits as its factorization.

64158443 is an evil number, because the sum of its binary digits is even.

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

The square root of 64158443 is about 8009.8965661237. The cubic root of 64158443 is about 400.3298175595.

The spelling of 64158443 in words is "sixty-four million, one hundred fifty-eight thousand, four hundred forty-three".