140210969 has 4 divisors (see below), whose sum is σ = 145045860. Its totient is φ = 135376080.

The previous prime is 140210957. The next prime is 140210971. The reversal of 140210969 is 969012041.

140210969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 969012041 = 2207 ⋅439063.

It can be written as a sum of positive squares in 2 ways, for example, as 45050944 + 95160025 = 6712^2 + 9755^2 .

It is a cyclic number.

It is not a de Polignac number, because 140210969 - 2⁴ = 140210953 is a prime.

It is a super-2 number, since 2×140210969² = 39318231655837922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140210989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2417402 + ... + 2417459.

It is an arithmetic number, because the mean of its divisors is an integer number (36261465).

Almost surely, 2^140210969 is an apocalyptic number.

It is an amenable number.

140210969 is a deficient number, since it is larger than the sum of its proper divisors (4834891).

140210969 is an equidigital number, since it uses as much as digits as its factorization.

140210969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4834890.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 140210969 is about 11841.0712775492. The cubic root of 140210969 is about 519.5101019692.

The spelling of 140210969 in words is "one hundred forty million, two hundred ten thousand, nine hundred sixty-nine".