140246629 has 2 divisors, whose sum is σ = 140246630. Its totient is φ = 140246628.

The previous prime is 140246621. The next prime is 140246633. The reversal of 140246629 is 926642041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135722500 + 4524129 = 11650^2 + 2127^2 .

It is a cyclic number.

It is not a de Polignac number, because 140246629 - 2³ = 140246621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140246594 and 140246603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140246621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70123314 + 70123315.

It is an arithmetic number, because the mean of its divisors is an integer number (70123315).

Almost surely, 2^140246629 is an apocalyptic number.

It is an amenable number.

140246629 is a deficient number, since it is larger than the sum of its proper divisors (1).

140246629 is an equidigital number, since it uses as much as digits as its factorization.

140246629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 140246629 is about 11842.5769577402. The cubic root of 140246629 is about 519.5541407489.

The spelling of 140246629 in words is "one hundred forty million, two hundred forty-six thousand, six hundred twenty-nine".