65045247 has 16 divisors (see below), whose sum is σ = 92067840. Its totient is φ = 40706432.

The previous prime is 65045243. The next prime is 65045269. The reversal of 65045247 is 74254056.

It is not a de Polignac number, because 65045247 - 2² = 65045243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65045243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21154 + ... + 24032.

It is an arithmetic number, because the mean of its divisors is an integer number (5754240).

Almost surely, 2^65045247 is an apocalyptic number.

65045247 is a deficient number, since it is larger than the sum of its proper divisors (27022593).

65045247 is a wasteful number, since it uses less digits than its factorization.

65045247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3342.

The product of its (nonzero) digits is 33600, while the sum is 33.

The square root of 65045247 is about 8065.0633599495. The cubic root of 65045247 is about 402.1658494904.

The spelling of 65045247 in words is "sixty-five million, forty-five thousand, two hundred forty-seven".