140998129 has 2 divisors, whose sum is σ = 140998130. Its totient is φ = 140998128.

The previous prime is 140998127. The next prime is 140998147. The reversal of 140998129 is 921899041.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76597504 + 64400625 = 8752^2 + 8025^2 .

It is a cyclic number.

It is not a de Polignac number, because 140998129 - 2¹ = 140998127 is a prime.

Together with 140998127, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (140998127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70499064 + 70499065.

It is an arithmetic number, because the mean of its divisors is an integer number (70499065).

Almost surely, 2^140998129 is an apocalyptic number.

It is an amenable number.

140998129 is a deficient number, since it is larger than the sum of its proper divisors (1).

140998129 is an equidigital number, since it uses as much as digits as its factorization.

140998129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 43.

The square root of 140998129 is about 11874.2633034643. The cubic root of 140998129 is about 520.4804841465.

The spelling of 140998129 in words is "one hundred forty million, nine hundred ninety-eight thousand, one hundred twenty-nine".