140634141889 has 2 divisors, whose sum is σ = 140634141890. Its totient is φ = 140634141888.

The previous prime is 140634141743. The next prime is 140634141929. The reversal of 140634141889 is 988141436041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 138879202225 + 1754939664 = 372665^2 + 41892^2 .

It is a cyclic number.

It is not a de Polignac number, because 140634141889 - 2¹³ = 140634133697 is a prime.

It is not a weakly prime, because it can be changed into another prime (140634141289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70317070944 + 70317070945.

It is an arithmetic number, because the mean of its divisors is an integer number (70317070945).

Almost surely, 2^140634141889 is an apocalyptic number.

It is an amenable number.

140634141889 is a deficient number, since it is larger than the sum of its proper divisors (1).

140634141889 is an equidigital number, since it uses as much as digits as its factorization.

140634141889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 663552, while the sum is 49.

The spelling of 140634141889 in words is "one hundred forty billion, six hundred thirty-four million, one hundred forty-one thousand, eight hundred eighty-nine".