140554129 has 2 divisors, whose sum is σ = 140554130. Its totient is φ = 140554128.

The previous prime is 140554123. The next prime is 140554171. The reversal of 140554129 is 921455041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101203600 + 39350529 = 10060^2 + 6273^2 .

It is a cyclic number.

It is not a de Polignac number, because 140554129 - 2³ = 140554121 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140554129.

It is not a weakly prime, because it can be changed into another prime (140554121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70277064 + 70277065.

It is an arithmetic number, because the mean of its divisors is an integer number (70277065).

Almost surely, 2^140554129 is an apocalyptic number.

It is an amenable number.

140554129 is a deficient number, since it is larger than the sum of its proper divisors (1).

140554129 is an equidigital number, since it uses as much as digits as its factorization.

140554129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 140554129 is about 11855.5526653126. The cubic root of 140554129 is about 519.9335824935.

The spelling of 140554129 in words is "one hundred forty million, five hundred fifty-four thousand, one hundred twenty-nine".