140917157 has 2 divisors, whose sum is σ = 140917158. Its totient is φ = 140917156.

The previous prime is 140917141. The next prime is 140917187. The reversal of 140917157 is 751719041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112550881 + 28366276 = 10609^2 + 5326^2 .

It is a cyclic number.

It is not a de Polignac number, because 140917157 - 2⁴ = 140917141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140917187) 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 as a sum of consecutive naturals, namely, 70458578 + 70458579.

It is an arithmetic number, because the mean of its divisors is an integer number (70458579).

Almost surely, 2^140917157 is an apocalyptic number.

It is an amenable number.

140917157 is a deficient number, since it is larger than the sum of its proper divisors (1).

140917157 is an equidigital number, since it uses as much as digits as its factorization.

140917157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8820, while the sum is 35.

The square root of 140917157 is about 11870.8532549265. The cubic root of 140917157 is about 520.3808317229.

The spelling of 140917157 in words is "one hundred forty million, nine hundred seventeen thousand, one hundred fifty-seven".