65320146 has 12 divisors (see below), whose sum is σ = 141527022. Its totient is φ = 21773376.

The previous prime is 65320117. The next prime is 65320147. The reversal of 65320146 is 64102356.

65320146 is a `hidden beast` number, since 653 + 2 + 0 + 1 + 4 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 54686025 + 10634121 = 7395^2 + 3261^2 .

It is a super-2 number, since 2×65320146² = 8533442946922632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65320147) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1814431 + ... + 1814466.

Almost surely, 2^65320146 is an apocalyptic number.

65320146 is an abundant number, since it is smaller than the sum of its proper divisors (76206876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65320146 is a wasteful number, since it uses less digits than its factorization.

65320146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3628905 (or 3628902 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 65320146 is about 8082.0879727951. The cubic root of 65320146 is about 402.7316075045.

The spelling of 65320146 in words is "sixty-five million, three hundred twenty thousand, one hundred forty-six".