65135750 has 16 divisors (see below), whose sum is σ = 121934592. Its totient is φ = 26054200.

The previous prime is 65135731. The next prime is 65135761. The reversal of 65135750 is 5753156.

65135750 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 130022 + ... + 130521.

It is an arithmetic number, because the mean of its divisors is an integer number (7620912).

Almost surely, 2^65135750 is an apocalyptic number.

65135750 is a deficient number, since it is larger than the sum of its proper divisors (56798842).

65135750 is a wasteful number, since it uses less digits than its factorization.

65135750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260560 (or 260550 counting only the distinct ones).

The product of its (nonzero) digits is 15750, while the sum is 32.

The square root of 65135750 is about 8070.6722148778. The cubic root of 65135750 is about 402.3522855983.

The spelling of 65135750 in words is "sixty-five million, one hundred thirty-five thousand, seven hundred fifty".