140212529 has 2 divisors, whose sum is σ = 140212530. Its totient is φ = 140212528.

The previous prime is 140212511. The next prime is 140212559. The reversal of 140212529 is 925212041.

140212529 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100962304 + 39250225 = 10048^2 + 6265^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140212529 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 140212498 and 140212507.

It is not a weakly prime, because it can be changed into another prime (140212559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70106264 + 70106265.

It is an arithmetic number, because the mean of its divisors is an integer number (70106265).

Almost surely, 2^140212529 is an apocalyptic number.

It is an amenable number.

140212529 is a deficient number, since it is larger than the sum of its proper divisors (1).

140212529 is an equidigital number, since it uses as much as digits as its factorization.

140212529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 140212529 is about 11841.1371497842. The cubic root of 140212529 is about 519.5120286677.

It can be divided in two parts, 1402 and 12529, that added together give a palindrome (13931).

The spelling of 140212529 in words is "one hundred forty million, two hundred twelve thousand, five hundred twenty-nine".