19465065 has 12 divisors (see below), whose sum is σ = 33739524. Its totient is φ = 10381344.

The previous prime is 19465057. The next prime is 19465073. The reversal of 19465065 is 56056491.

It is an interprime number because it is at equal distance from previous prime (19465057) and next prime (19465073).

It can be written as a sum of positive squares in 2 ways, for example, as 4511376 + 14953689 = 2124^2 + 3867^2 .

It is not a de Polignac number, because 19465065 - 2³ = 19465057 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 216234 + ... + 216323.

It is an arithmetic number, because the mean of its divisors is an integer number (2811627).

Almost surely, 2^19465065 is an apocalyptic number.

19465065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19465065 is a deficient number, since it is larger than the sum of its proper divisors (14274459).

19465065 is a wasteful number, since it uses less digits than its factorization.

19465065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432568 (or 432565 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 19465065 is about 4411.9230500996. The cubic root of 19465065 is about 268.9997973124. Note that the first 3 decimals are identical.

The spelling of 19465065 in words is "nineteen million, four hundred sixty-five thousand, sixty-five".