140245357 has 4 divisors (see below), whose sum is σ = 160280416. Its totient is φ = 120210300.

The previous prime is 140245331. The next prime is 140245361. The reversal of 140245357 is 753542041.

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 not a de Polignac number, because 140245357 - 2¹⁹ = 139721069 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 (140245387) 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, 10017519 + ... + 10017532.

It is an arithmetic number, because the mean of its divisors is an integer number (40070104).

Almost surely, 2^140245357 is an apocalyptic number.

It is an amenable number.

140245357 is a deficient number, since it is larger than the sum of its proper divisors (20035059).

140245357 is an equidigital number, since it uses as much as digits as its factorization.

140245357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20035058.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 140245357 is about 11842.5232530910. The cubic root of 140245357 is about 519.5525700044.

Adding to 140245357 its reverse (753542041), we get a palindrome (893787398).

The spelling of 140245357 in words is "one hundred forty million, two hundred forty-five thousand, three hundred fifty-seven".