65138702 has 8 divisors (see below), whose sum is σ = 98454312. Its totient is φ = 32320600.

The previous prime is 65138699. The next prime is 65138771. The reversal of 65138702 is 20783156.

It is a happy number.

65138702 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124049 + ... + 124572.

It is an arithmetic number, because the mean of its divisors is an integer number (12306789).

Almost surely, 2^65138702 is an apocalyptic number.

65138702 is a deficient number, since it is larger than the sum of its proper divisors (33315610).

65138702 is a wasteful number, since it uses less digits than its factorization.

65138702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248754.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 65138702 is about 8070.8550972000. The cubic root of 65138702 is about 402.3583638068.

The spelling of 65138702 in words is "sixty-five million, one hundred thirty-eight thousand, seven hundred two".