140297035 has 4 divisors (see below), whose sum is σ = 168356448. Its totient is φ = 112237624.

The previous prime is 140297029. The next prime is 140297051. The reversal of 140297035 is 530792041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 530792041 = 13 ⋅40830157.

It is a cyclic number.

It is not a de Polignac number, because 140297035 - 2⁷ = 140296907 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140296988 and 140297006.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 14029699 + ... + 14029708.

It is an arithmetic number, because the mean of its divisors is an integer number (42089112).

Almost surely, 2^140297035 is an apocalyptic number.

140297035 is a deficient number, since it is larger than the sum of its proper divisors (28059413).

140297035 is an equidigital number, since it uses as much as digits as its factorization.

140297035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28059412.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 140297035 is about 11844.7049351176. The cubic root of 140297035 is about 519.6163775607.

The spelling of 140297035 in words is "one hundred forty million, two hundred ninety-seven thousand, thirty-five".