140615623 has 2 divisors, whose sum is σ = 140615624. Its totient is φ = 140615622.

The previous prime is 140615617. The next prime is 140615627. The reversal of 140615623 is 326516041.

It is a strong prime.

It is an emirp because it is prime and its reverse (326516041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140615623 - 2⁵ = 140615591 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140615591 and 140615600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140615627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70307811 + 70307812.

It is an arithmetic number, because the mean of its divisors is an integer number (70307812).

Almost surely, 2^140615623 is an apocalyptic number.

140615623 is a deficient number, since it is larger than the sum of its proper divisors (1).

140615623 is an equidigital number, since it uses as much as digits as its factorization.

140615623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 140615623 is about 11858.1458500054. The cubic root of 140615623 is about 520.0093970195.

The spelling of 140615623 in words is "one hundred forty million, six hundred fifteen thousand, six hundred twenty-three".