140052923 has 4 divisors (see below), whose sum is σ = 140077728. Its totient is φ = 140028120.

The previous prime is 140052883. The next prime is 140052931. The reversal of 140052923 is 329250041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 329250041 = 181 ⋅1819061.

It is a cyclic number.

It is not a de Polignac number, because 140052923 - 2²⁰ = 139004347 is a prime.

It is a super-2 number, since 2×140052923² = 39229642481687858, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140052892 and 140052901.

It is not an unprimeable number, because it can be changed into a prime (140052973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 638 + ... + 16748.

It is an arithmetic number, because the mean of its divisors is an integer number (35019432).

Almost surely, 2^140052923 is an apocalyptic number.

140052923 is a deficient number, since it is larger than the sum of its proper divisors (24805).

140052923 is an equidigital number, since it uses as much as digits as its factorization.

140052923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24804.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 140052923 is about 11834.3957598181. The cubic root of 140052923 is about 519.3148310769.

The spelling of 140052923 in words is "one hundred forty million, fifty-two thousand, nine hundred twenty-three".