140351597 has 2 divisors, whose sum is σ = 140351598. Its totient is φ = 140351596.

The previous prime is 140351521. The next prime is 140351621. The reversal of 140351597 is 795153041.

140351597 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125865961 + 14485636 = 11219^2 + 3806^2 .

It is an emirp because it is prime and its reverse (795153041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140351597 - 2¹⁶ = 140286061 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140351297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70175798 + 70175799.

It is an arithmetic number, because the mean of its divisors is an integer number (70175799).

Almost surely, 2^140351597 is an apocalyptic number.

It is an amenable number.

140351597 is a deficient number, since it is larger than the sum of its proper divisors (1).

140351597 is an equidigital number, since it uses as much as digits as its factorization.

140351597 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 140351597 is about 11847.0079344955. The cubic root of 140351597 is about 519.6837290298.

The spelling of 140351597 in words is "one hundred forty million, three hundred fifty-one thousand, five hundred ninety-seven".