140285670949 has 2 divisors, whose sum is σ = 140285670950. Its totient is φ = 140285670948.

The previous prime is 140285670937. The next prime is 140285670997. The reversal of 140285670949 is 949076582041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136590854724 + 3694816225 = 369582^2 + 60785^2 .

It is a cyclic number.

It is not a de Polignac number, because 140285670949 - 2³⁷ = 2846717477 is a prime.

It is a super-2 number, since 2×140285670949² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 140285670949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140285670929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70142835474 + 70142835475.

It is an arithmetic number, because the mean of its divisors is an integer number (70142835475).

Almost surely, 2^140285670949 is an apocalyptic number.

It is an amenable number.

140285670949 is a deficient number, since it is larger than the sum of its proper divisors (1).

140285670949 is an equidigital number, since it uses as much as digits as its factorization.

140285670949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 140285670949 in words is "one hundred forty billion, two hundred eighty-five million, six hundred seventy thousand, nine hundred forty-nine".