140147123 has 2 divisors, whose sum is σ = 140147124. Its totient is φ = 140147122.

The previous prime is 140147101. The next prime is 140147129. The reversal of 140147123 is 321741041.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140147123 - 2¹⁶ = 140081587 is a prime.

It is not a weakly prime, because it can be changed into another prime (140147129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70073561 + 70073562.

It is an arithmetic number, because the mean of its divisors is an integer number (70073562).

Almost surely, 2^140147123 is an apocalyptic number.

140147123 is a deficient number, since it is larger than the sum of its proper divisors (1).

140147123 is an equidigital number, since it uses as much as digits as its factorization.

140147123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 140147123 is about 11838.3750151784. The cubic root of 140147123 is about 519.4312358672.

Adding to 140147123 its reverse (321741041), we get a palindrome (461888164).

The spelling of 140147123 in words is "one hundred forty million, one hundred forty-seven thousand, one hundred twenty-three".