140252039 has 2 divisors, whose sum is σ = 140252040. Its totient is φ = 140252038.

The previous prime is 140251961. The next prime is 140252081. The reversal of 140252039 is 930252041.

It is a strong prime.

It is an emirp because it is prime and its reverse (930252041) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140252039 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 140251999 and 140252017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140252939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70126019 + 70126020.

It is an arithmetic number, because the mean of its divisors is an integer number (70126020).

Almost surely, 2^140252039 is an apocalyptic number.

140252039 is a deficient number, since it is larger than the sum of its proper divisors (1).

140252039 is an equidigital number, since it uses as much as digits as its factorization.

140252039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 140252039 is about 11842.8053686616. The cubic root of 140252039 is about 519.5608212464.

The spelling of 140252039 in words is "one hundred forty million, two hundred fifty-two thousand, thirty-nine".