140541029 has 2 divisors, whose sum is σ = 140541030. Its totient is φ = 140541028.

The previous prime is 140541019. The next prime is 140541053. The reversal of 140541029 is 920145041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140541025 + 4 = 11855^2 + 2^2 .

It is a cyclic number.

It is not a de Polignac number, because 140541029 - 2¹² = 140536933 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 140540989 and 140541007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140541019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70270514 + 70270515.

It is an arithmetic number, because the mean of its divisors is an integer number (70270515).

Almost surely, 2^140541029 is an apocalyptic number.

It is an amenable number.

140541029 is a deficient number, since it is larger than the sum of its proper divisors (1).

140541029 is an equidigital number, since it uses as much as digits as its factorization.

140541029 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 140541029 is about 11855.0001687052. Note that the first 3 decimals coincide. The cubic root of 140541029 is about 519.9174289503.

The spelling of 140541029 in words is "one hundred forty million, five hundred forty-one thousand, twenty-nine".