64152691 has 2 divisors, whose sum is σ = 64152692. Its totient is φ = 64152690.

The previous prime is 64152667. The next prime is 64152761. The reversal of 64152691 is 19625146.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64152691 - 2⁷ = 64152563 is a prime.

It is not a weakly prime, because it can be changed into another prime (64152601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32076345 + 32076346.

It is an arithmetic number, because the mean of its divisors is an integer number (32076346).

Almost surely, 2^64152691 is an apocalyptic number.

64152691 is a deficient number, since it is larger than the sum of its proper divisors (1).

64152691 is an equidigital number, since it uses as much as digits as its factorization.

64152691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 34.

The square root of 64152691 is about 8009.5375022532. The cubic root of 64152691 is about 400.3178536058.

The spelling of 64152691 in words is "sixty-four million, one hundred fifty-two thousand, six hundred ninety-one".