65140929 has 40 divisors (see below), whose sum is σ = 112187328. Its totient is φ = 36897120.

The previous prime is 65140927. The next prime is 65140937. The reversal of 65140929 is 92904156.

It is not a de Polignac number, because 65140929 - 2¹ = 65140927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65140893 and 65140902.

It is not an unprimeable number, because it can be changed into a prime (65140921) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 73839 + ... + 74715.

Almost surely, 2^65140929 is an apocalyptic number.

It is an amenable number.

65140929 is a deficient number, since it is larger than the sum of its proper divisors (47046399).

65140929 is a wasteful number, since it uses less digits than its factorization.

65140929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027 (or 1018 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 65140929 is about 8070.9930615755. The cubic root of 65140929 is about 402.3629491088.

The spelling of 65140929 in words is "sixty-five million, one hundred forty thousand, nine hundred twenty-nine".