140334013 has 2 divisors, whose sum is σ = 140334014. Its totient is φ = 140334012.

The previous prime is 140333989. The next prime is 140334049. The reversal of 140334013 is 310433041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97653924 + 42680089 = 9882^2 + 6533^2 .

It is an emirp because it is prime and its reverse (310433041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140334013 - 2¹⁷ = 140202941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140334053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70167006 + 70167007.

It is an arithmetic number, because the mean of its divisors is an integer number (70167007).

Almost surely, 2^140334013 is an apocalyptic number.

It is an amenable number.

140334013 is a deficient number, since it is larger than the sum of its proper divisors (1).

140334013 is an equidigital number, since it uses as much as digits as its factorization.

140334013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 140334013 is about 11846.2657829377. The cubic root of 140334013 is about 519.6620252028.

Adding to 140334013 its reverse (310433041), we get a palindrome (450767054).

It can be divided in two parts, 140 and 334013, that added together give a triangular number (334153 = T₈₁₇).

The spelling of 140334013 in words is "one hundred forty million, three hundred thirty-four thousand, thirteen".