65419091 has 2 divisors, whose sum is σ = 65419092. Its totient is φ = 65419090.

The previous prime is 65419069. The next prime is 65419121. The reversal of 65419091 is 19091456.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65419091 - 2⁶ = 65419027 is a prime.

It is not a weakly prime, because it can be changed into another prime (65412091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32709545 + 32709546.

It is an arithmetic number, because the mean of its divisors is an integer number (32709546).

Almost surely, 2^65419091 is an apocalyptic number.

65419091 is a deficient number, since it is larger than the sum of its proper divisors (1).

65419091 is an equidigital number, since it uses as much as digits as its factorization.

65419091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 65419091 is about 8088.2069088272. The cubic root of 65419091 is about 402.9348535061.

The spelling of 65419091 in words is "sixty-five million, four hundred nineteen thousand, ninety-one".