140238953 has 4 divisors (see below), whose sum is σ = 143500368. Its totient is φ = 136977540.

The previous prime is 140238941. The next prime is 140239003. The reversal of 140238953 is 359832041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 140238953 - 2⁴ = 140238937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140238653) 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, 1630643 + ... + 1630728.

It is an arithmetic number, because the mean of its divisors is an integer number (35875092).

Almost surely, 2^140238953 is an apocalyptic number.

It is an amenable number.

140238953 is a deficient number, since it is larger than the sum of its proper divisors (3261415).

140238953 is an equidigital number, since it uses as much as digits as its factorization.

140238953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3261414.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 140238953 is about 11842.2528684368. The cubic root of 140238953 is about 519.5446618037.

The spelling of 140238953 in words is "one hundred forty million, two hundred thirty-eight thousand, nine hundred fifty-three".