65804145 has 16 divisors (see below), whose sum is σ = 114858432. Its totient is φ = 31904960.

The previous prime is 65804131. The next prime is 65804203. The reversal of 65804145 is 54140856.

It is not a de Polignac number, because 65804145 - 2⁵ = 65804113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199242 + ... + 199571.

It is an arithmetic number, because the mean of its divisors is an integer number (7178652).

Almost surely, 2^65804145 is an apocalyptic number.

It is an amenable number.

65804145 is a deficient number, since it is larger than the sum of its proper divisors (49054287).

65804145 is a wasteful number, since it uses less digits than its factorization.

65804145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398832.

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 65804145 is about 8111.9754067675. The cubic root of 65804145 is about 403.7238600016.

The spelling of 65804145 in words is "sixty-five million, eight hundred four thousand, one hundred forty-five".