237280065 has 16 divisors (see below), whose sum is σ = 414161856. Its totient is φ = 115044800.

The previous prime is 237280051. The next prime is 237280081. The reversal of 237280065 is 560082732.

It is not a de Polignac number, because 237280065 - 2¹¹ = 237278017 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 718866 + ... + 719195.

It is an arithmetic number, because the mean of its divisors is an integer number (25885116).

Almost surely, 2^237280065 is an apocalyptic number.

It is an amenable number.

237280065 is a deficient number, since it is larger than the sum of its proper divisors (176881791).

237280065 is a wasteful number, since it uses less digits than its factorization.

237280065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438080.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 237280065 is about 15403.8977210315. The cubic root of 237280065 is about 619.0899456327.

The spelling of 237280065 in words is "two hundred thirty-seven million, two hundred eighty thousand, sixty-five".