140430737 has 2 divisors, whose sum is σ = 140430738. Its totient is φ = 140430736.

The previous prime is 140430721. The next prime is 140430739. The reversal of 140430737 is 737034041.

140430737 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., 82609921 + 57820816 = 9089^2 + 7604^2 .

It is an emirp because it is prime and its reverse (737034041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140430737 - 2⁴ = 140430721 is a prime.

Together with 140430739, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (140430739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70215368 + 70215369.

It is an arithmetic number, because the mean of its divisors is an integer number (70215369).

Almost surely, 2^140430737 is an apocalyptic number.

It is an amenable number.

140430737 is a deficient number, since it is larger than the sum of its proper divisors (1).

140430737 is an equidigital number, since it uses as much as digits as its factorization.

140430737 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 140430737 is about 11850.3475476460. The cubic root of 140430737 is about 519.7813886299.

Adding to 140430737 its reverse (737034041), we get a palindrome (877464778).

The spelling of 140430737 in words is "one hundred forty million, four hundred thirty thousand, seven hundred thirty-seven".