140542201 has 2 divisors, whose sum is σ = 140542202. Its totient is φ = 140542200.

The previous prime is 140542187. The next prime is 140542217. The reversal of 140542201 is 102245041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135024400 + 5517801 = 11620^2 + 2349^2 .

It is a cyclic number.

It is not a de Polignac number, because 140542201 - 2¹⁵ = 140509433 is a prime.

It is a super-5 number, since 5×140542201⁵ (a number of 42 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (140542271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70271100 + 70271101.

It is an arithmetic number, because the mean of its divisors is an integer number (70271101).

Almost surely, 2^140542201 is an apocalyptic number.

It is an amenable number.

140542201 is a deficient number, since it is larger than the sum of its proper divisors (1).

140542201 is an equidigital number, since it uses as much as digits as its factorization.

140542201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 140542201 is about 11855.0495992214. The cubic root of 140542201 is about 519.9188741784.

Adding to 140542201 its reverse (102245041), we get a palindrome (242787242).

The spelling of 140542201 in words is "one hundred forty million, five hundred forty-two thousand, two hundred one".