140403157 has 2 divisors, whose sum is σ = 140403158. Its totient is φ = 140403156.

The previous prime is 140403149. The next prime is 140403169. The reversal of 140403157 is 751304041.

140403157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140398801 + 4356 = 11849^2 + 66^2 .

It is a cyclic number.

It is not a de Polignac number, because 140403157 - 2³ = 140403149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140403457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70201578 + 70201579.

It is an arithmetic number, because the mean of its divisors is an integer number (70201579).

Almost surely, 2^140403157 is an apocalyptic number.

It is an amenable number.

140403157 is a deficient number, since it is larger than the sum of its proper divisors (1).

140403157 is an equidigital number, since it uses as much as digits as its factorization.

140403157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 140403157 is about 11849.1838115543. The cubic root of 140403157 is about 519.7473587834.

Adding to 140403157 its reverse (751304041), we get a palindrome (891707198).

The spelling of 140403157 in words is "one hundred forty million, four hundred three thousand, one hundred fifty-seven".