1238066065 has 32 divisors (see below), whose sum is σ = 1601326080. Its totient is φ = 917049600.

The previous prime is 1238066051. The next prime is 1238066069. The reversal of 1238066065 is 5606608321.

It is not a de Polignac number, because 1238066065 - 2⁷ = 1238065937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (1238066069) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 348066 + ... + 351604.

It is an arithmetic number, because the mean of its divisors is an integer number (50041440).

Almost surely, 2^1238066065 is an apocalyptic number.

It is an amenable number.

1238066065 is a deficient number, since it is larger than the sum of its proper divisors (363260015).

1238066065 is a wasteful number, since it uses less digits than its factorization.

1238066065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3673.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 1238066065 is about 35186.1629763747. The cubic root of 1238066065 is about 1073.7782593912.

The spelling of 1238066065 in words is "one billion, two hundred thirty-eight million, sixty-six thousand, sixty-five".