65129371 has 2 divisors, whose sum is σ = 65129372. Its totient is φ = 65129370.

The previous prime is 65129327. The next prime is 65129381. The reversal of 65129371 is 17392156.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65129371 - 2⁷ = 65129243 is a prime.

It is not a weakly prime, because it can be changed into another prime (65129381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32564685 + 32564686.

It is an arithmetic number, because the mean of its divisors is an integer number (32564686).

Almost surely, 2^65129371 is an apocalyptic number.

65129371 is a deficient number, since it is larger than the sum of its proper divisors (1).

65129371 is an equidigital number, since it uses as much as digits as its factorization.

65129371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11340, while the sum is 34.

The square root of 65129371 is about 8070.2770088765. The cubic root of 65129371 is about 402.3391505226.

The spelling of 65129371 in words is "sixty-five million, one hundred twenty-nine thousand, three hundred seventy-one".