140229965 has 12 divisors (see below), whose sum is σ = 175913724. Its totient is φ = 107304384.

The previous prime is 140229907. The next prime is 140230001. The reversal of 140229965 is 569922041.

It can be written as a sum of positive squares in 2 ways, for example, as 99640324 + 40589641 = 9982^2 + 6371^2 .

It is not a de Polignac number, because 140229965 - 2²⁰ = 139181389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23864 + ... + 29153.

It is an arithmetic number, because the mean of its divisors is an integer number (14659477).

Almost surely, 2^140229965 is an apocalyptic number.

It is an amenable number.

140229965 is a deficient number, since it is larger than the sum of its proper divisors (35683759).

140229965 is an equidigital number, since it uses as much as digits as its factorization.

140229965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53068 (or 53045 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 140229965 is about 11841.8733737530. The cubic root of 140229965 is about 519.5335622551.

The spelling of 140229965 in words is "one hundred forty million, two hundred twenty-nine thousand, nine hundred sixty-five".