140444348531 has 2 divisors, whose sum is σ = 140444348532. Its totient is φ = 140444348530.

The previous prime is 140444348507. The next prime is 140444348543. The reversal of 140444348531 is 135843444041.

It is a strong prime.

It is an emirp because it is prime and its reverse (135843444041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140444348531 - 2¹⁰ = 140444347507 is a prime.

It is a super-2 number, since 2×140444348531² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (140444348591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70222174265 + 70222174266.

It is an arithmetic number, because the mean of its divisors is an integer number (70222174266).

Almost surely, 2^140444348531 is an apocalyptic number.

140444348531 is a deficient number, since it is larger than the sum of its proper divisors (1).

140444348531 is an equidigital number, since it uses as much as digits as its factorization.

140444348531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 368640, while the sum is 41.

The spelling of 140444348531 in words is "one hundred forty billion, four hundred forty-four million, three hundred forty-eight thousand, five hundred thirty-one".