65140570 has 32 divisors (see below), whose sum is σ = 128246976. Its totient is φ = 23625600.

The previous prime is 65140561. The next prime is 65140573. The reversal of 65140570 is 7504156.

It is not an unprimeable number, because it can be changed into a prime (65140573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75582 + ... + 76438.

It is an arithmetic number, because the mean of its divisors is an integer number (4007718).

Almost surely, 2^65140570 is an apocalyptic number.

65140570 is a deficient number, since it is larger than the sum of its proper divisors (63106406).

65140570 is a wasteful number, since it uses less digits than its factorization.

65140570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1566.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 65140570 is about 8070.9708214068. The cubic root of 65140570 is about 402.3622099495.

The spelling of 65140570 in words is "sixty-five million, one hundred forty thousand, five hundred seventy".