65254121 has 2 divisors, whose sum is σ = 65254122. Its totient is φ = 65254120.

The previous prime is 65254097. The next prime is 65254139. The reversal of 65254121 is 12145256.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64963600 + 290521 = 8060^2 + 539^2 .

It is a cyclic number.

It is not a de Polignac number, because 65254121 - 2¹⁸ = 64991977 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (65254621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32627060 + 32627061.

It is an arithmetic number, because the mean of its divisors is an integer number (32627061).

Almost surely, 2^65254121 is an apocalyptic number.

It is an amenable number.

65254121 is a deficient number, since it is larger than the sum of its proper divisors (1).

65254121 is an equidigital number, since it uses as much as digits as its factorization.

65254121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2400, while the sum is 26.

The square root of 65254121 is about 8078.0022901705. The cubic root of 65254121 is about 402.5958692974.

Adding to 65254121 its reverse (12145256), we get a palindrome (77399377).

The spelling of 65254121 in words is "sixty-five million, two hundred fifty-four thousand, one hundred twenty-one".