140275657 has 4 divisors (see below), whose sum is σ = 140299776. Its totient is φ = 140251540.

The previous prime is 140275649. The next prime is 140275703. The reversal of 140275657 is 756572041.

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 140275657 - 2³ = 140275649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140275607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2628 + ... + 16954.

It is an arithmetic number, because the mean of its divisors is an integer number (35074944).

Almost surely, 2^140275657 is an apocalyptic number.

It is an amenable number.

140275657 is a deficient number, since it is larger than the sum of its proper divisors (24119).

140275657 is an equidigital number, since it uses as much as digits as its factorization.

140275657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24118.

The product of its (nonzero) digits is 58800, while the sum is 37.

The square root of 140275657 is about 11843.8024721793. The cubic root of 140275657 is about 519.5899837428.

The spelling of 140275657 in words is "one hundred forty million, two hundred seventy-five thousand, six hundred fifty-seven".