140493629 has 2 divisors, whose sum is σ = 140493630. Its totient is φ = 140493628.

The previous prime is 140493611. The next prime is 140493631. The reversal of 140493629 is 926394041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92121604 + 48372025 = 9598^2 + 6955^2 .

It is an emirp because it is prime and its reverse (926394041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140493629 - 2²⁴ = 123716413 is a prime.

Together with 140493631, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 140493592 and 140493601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140493649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70246814 + 70246815.

It is an arithmetic number, because the mean of its divisors is an integer number (70246815).

Almost surely, 2^140493629 is an apocalyptic number.

It is an amenable number.

140493629 is a deficient number, since it is larger than the sum of its proper divisors (1).

140493629 is an equidigital number, since it uses as much as digits as its factorization.

140493629 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 38.

The square root of 140493629 is about 11853.0008436682. Note that the first 3 decimals coincide. The cubic root of 140493629 is about 519.8589718640.

The spelling of 140493629 in words is "one hundred forty million, four hundred ninety-three thousand, six hundred twenty-nine".