1000140623 has 2 divisors, whose sum is σ = 1000140624. Its totient is φ = 1000140622.

The previous prime is 1000140611. The next prime is 1000140643. The reversal of 1000140623 is 3260410001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1000140623 - 2¹⁰ = 1000139599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000140643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500070311 + 500070312.

It is an arithmetic number, because the mean of its divisors is an integer number (500070312).

Almost surely, 2^1000140623 is an apocalyptic number.

1000140623 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000140623 is an equidigital number, since it uses as much as digits as its factorization.

1000140623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1000140623 is about 31624.9999683794. Note that the first 4 decimals coincide. The cubic root of 1000140623 is about 1000.0468721363.

Adding to 1000140623 its reverse (3260410001), we get a palindrome (4260550624).

The spelling of 1000140623 in words is "one billion, one hundred forty thousand, six hundred twenty-three".