64153729 has 2 divisors, whose sum is σ = 64153730. Its totient is φ = 64153728.

The previous prime is 64153723. The next prime is 64153741. The reversal of 64153729 is 92735146.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60093504 + 4060225 = 7752^2 + 2015^2 .

It is a cyclic number.

It is not a de Polignac number, because 64153729 - 2⁵ = 64153697 is a prime.

It is not a weakly prime, because it can be changed into another prime (64153723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32076864 + 32076865.

It is an arithmetic number, because the mean of its divisors is an integer number (32076865).

Almost surely, 2^64153729 is an apocalyptic number.

It is an amenable number.

64153729 is a deficient number, since it is larger than the sum of its proper divisors (1).

64153729 is an equidigital number, since it uses as much as digits as its factorization.

64153729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 37.

The square root of 64153729 is about 8009.6022997400. The cubic root of 64153729 is about 400.3200126615.

The spelling of 64153729 in words is "sixty-four million, one hundred fifty-three thousand, seven hundred twenty-nine".