140259137 has 2 divisors, whose sum is σ = 140259138. Its totient is φ = 140259136.

The previous prime is 140259113. The next prime is 140259169. The reversal of 140259137 is 731952041.

It is an a-pointer prime, because the next prime (140259169) can be obtained adding 140259137 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93528241 + 46730896 = 9671^2 + 6836^2 .

It is an emirp because it is prime and its reverse (731952041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140259137 - 2¹⁸ = 139996993 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (140259437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70129568 + 70129569.

It is an arithmetic number, because the mean of its divisors is an integer number (70129569).

Almost surely, 2^140259137 is an apocalyptic number.

It is an amenable number.

140259137 is a deficient number, since it is larger than the sum of its proper divisors (1).

140259137 is an equidigital number, since it uses as much as digits as its factorization.

140259137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 140259137 is about 11843.1050404866. The cubic root of 140259137 is about 519.5695858973.

The spelling of 140259137 in words is "one hundred forty million, two hundred fifty-nine thousand, one hundred thirty-seven".