140069837 has 2 divisors, whose sum is σ = 140069838. Its totient is φ = 140069836.

The previous prime is 140069819. The next prime is 140069849. The reversal of 140069837 is 738960041.

140069837 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87347716 + 52722121 = 9346^2 + 7261^2 .

It is a cyclic number.

It is not a de Polignac number, because 140069837 - 2⁶ = 140069773 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140069837.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140069807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70034918 + 70034919.

It is an arithmetic number, because the mean of its divisors is an integer number (70034919).

Almost surely, 2^140069837 is an apocalyptic number.

It is an amenable number.

140069837 is a deficient number, since it is larger than the sum of its proper divisors (1).

140069837 is an equidigital number, since it uses as much as digits as its factorization.

140069837 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 140069837 is about 11835.1103501404. The cubic root of 140069837 is about 519.3357358827.

The spelling of 140069837 in words is "one hundred forty million, sixty-nine thousand, eight hundred thirty-seven".