64152499 has 2 divisors, whose sum is σ = 64152500. Its totient is φ = 64152498.

The previous prime is 64152481. The next prime is 64152511. The reversal of 64152499 is 99425146.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64152499 - 2⁵ = 64152467 is a prime.

It is not a weakly prime, because it can be changed into another prime (64152409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32076249 + 32076250.

It is an arithmetic number, because the mean of its divisors is an integer number (32076250).

Almost surely, 2^64152499 is an apocalyptic number.

64152499 is a deficient number, since it is larger than the sum of its proper divisors (1).

64152499 is an equidigital number, since it uses as much as digits as its factorization.

64152499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 40.

The square root of 64152499 is about 8009.5255165334. The cubic root of 64152499 is about 400.3174542404.

The spelling of 64152499 in words is "sixty-four million, one hundred fifty-two thousand, four hundred ninety-nine".