140164023 has 4 divisors (see below), whose sum is σ = 186885368. Its totient is φ = 93442680.

The previous prime is 140164019. The next prime is 140164027. The reversal of 140164023 is 320461041.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (140164019) and next prime (140164027).

It is not a de Polignac number, because 140164023 - 2² = 140164019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140164027) 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 in 3 ways as a sum of consecutive naturals, for example, 23360668 + ... + 23360673.

It is an arithmetic number, because the mean of its divisors is an integer number (46721342).

Almost surely, 2^140164023 is an apocalyptic number.

140164023 is a deficient number, since it is larger than the sum of its proper divisors (46721345).

140164023 is an equidigital number, since it uses as much as digits as its factorization.

140164023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46721344.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 140164023 is about 11839.0887740569. The cubic root of 140164023 is about 519.4521140103.

The spelling of 140164023 in words is "one hundred forty million, one hundred sixty-four thousand, twenty-three".