140262730945 has 4 divisors (see below), whose sum is σ = 168315277140. Its totient is φ = 112210184752.

The previous prime is 140262730901. The next prime is 140262731003. The reversal of 140262730945 is 549037262041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25400709376 + 114862021569 = 159376^2 + 338913^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140262730945 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14026273090 + ... + 14026273099.

It is an arithmetic number, because the mean of its divisors is an integer number (42078819285).

Almost surely, 2^140262730945 is an apocalyptic number.

It is an amenable number.

140262730945 is a deficient number, since it is larger than the sum of its proper divisors (28052546195).

140262730945 is an equidigital number, since it uses as much as digits as its factorization.

140262730945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28052546194.

The product of its (nonzero) digits is 362880, while the sum is 43.

Adding to 140262730945 its reverse (549037262041), we get a palindrome (689299992986).

The spelling of 140262730945 in words is "one hundred forty billion, two hundred sixty-two million, seven hundred thirty thousand, nine hundred forty-five".