65152069 has 4 divisors (see below), whose sum is σ = 65394540. Its totient is φ = 64909600.

The previous prime is 65152057. The next prime is 65152091. The reversal of 65152069 is 96025156.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24383844 + 40768225 = 4938^2 + 6385^2 .

It is a cyclic number.

It is not a de Polignac number, because 65152069 - 2⁹ = 65151557 is a prime.

It is a super-2 number, since 2×65152069² = 8489584189961522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65152019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120832 + ... + 121369.

It is an arithmetic number, because the mean of its divisors is an integer number (16348635).

Almost surely, 2^65152069 is an apocalyptic number.

It is an amenable number.

65152069 is a deficient number, since it is larger than the sum of its proper divisors (242471).

65152069 is a wasteful number, since it uses less digits than its factorization.

65152069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242470.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 65152069 is about 8071.6831578054. The cubic root of 65152069 is about 402.3858843449.

The spelling of 65152069 in words is "sixty-five million, one hundred fifty-two thousand, sixty-nine".