140164939 has 2 divisors, whose sum is σ = 140164940. Its totient is φ = 140164938.

The previous prime is 140164897. The next prime is 140164963. The reversal of 140164939 is 939461041.

It is a strong prime.

It is an emirp because it is prime and its reverse (939461041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140164939 - 2⁷ = 140164811 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140164898 and 140164907.

It is not a weakly prime, because it can be changed into another prime (140164039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70082469 + 70082470.

It is an arithmetic number, because the mean of its divisors is an integer number (70082470).

Almost surely, 2^140164939 is an apocalyptic number.

140164939 is a deficient number, since it is larger than the sum of its proper divisors (1).

140164939 is an equidigital number, since it uses as much as digits as its factorization.

140164939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 140164939 is about 11839.1274594034. The cubic root of 140164939 is about 519.4532455824.

The spelling of 140164939 in words is "one hundred forty million, one hundred sixty-four thousand, nine hundred thirty-nine".