64142051 has 2 divisors, whose sum is σ = 64142052. Its totient is φ = 64142050.

The previous prime is 64142047. The next prime is 64142059. The reversal of 64142051 is 15024146.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64142051 - 2² = 64142047 is a prime.

It is a super-2 number, since 2×64142051² = 8228405412973202, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64142059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32071025 + 32071026.

It is an arithmetic number, because the mean of its divisors is an integer number (32071026).

Almost surely, 2^64142051 is an apocalyptic number.

64142051 is a deficient number, since it is larger than the sum of its proper divisors (1).

64142051 is an equidigital number, since it uses as much as digits as its factorization.

64142051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 64142051 is about 8008.8732665713. The cubic root of 64142051 is about 400.2957209023.

Adding to 64142051 its reverse (15024146), we get a palindrome (79166197).

The spelling of 64142051 in words is "sixty-four million, one hundred forty-two thousand, fifty-one".