65572147 has 2 divisors, whose sum is σ = 65572148. Its totient is φ = 65572146.

The previous prime is 65572139. The next prime is 65572151. The reversal of 65572147 is 74127556.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65572147 - 2³ = 65572139 is a prime.

It is not a weakly prime, because it can be changed into another prime (65572127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32786073 + 32786074.

It is an arithmetic number, because the mean of its divisors is an integer number (32786074).

Almost surely, 2^65572147 is an apocalyptic number.

65572147 is a deficient number, since it is larger than the sum of its proper divisors (1).

65572147 is an equidigital number, since it uses as much as digits as its factorization.

65572147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58800, while the sum is 37.

The square root of 65572147 is about 8097.6630579446. The cubic root of 65572147 is about 403.2488472874.

The spelling of 65572147 in words is "sixty-five million, five hundred seventy-two thousand, one hundred forty-seven".