65211151 has 2 divisors, whose sum is σ = 65211152. Its totient is φ = 65211150.

The previous prime is 65211149. The next prime is 65211193. The reversal of 65211151 is 15111256.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65211151 - 2¹ = 65211149 is a prime.

Together with 65211149, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65211551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32605575 + 32605576.

It is an arithmetic number, because the mean of its divisors is an integer number (32605576).

Almost surely, 2^65211151 is an apocalyptic number.

65211151 is a deficient number, since it is larger than the sum of its proper divisors (1).

65211151 is an equidigital number, since it uses as much as digits as its factorization.

65211151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 300, while the sum is 22.

The square root of 65211151 is about 8075.3421599335. The cubic root of 65211151 is about 402.5074797679.

The spelling of 65211151 in words is "sixty-five million, two hundred eleven thousand, one hundred fifty-one".