140849281346 has 4 divisors (see below), whose sum is σ = 211273922022. Its totient is φ = 70424640672.

The previous prime is 140849281333. The next prime is 140849281357. The reversal of 140849281346 is 643182948041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 643182948041 = 59 ⋅10901405899.

It can be written as a sum of positive squares in only one way, i.e., 140729269321 + 120012025 = 375139^2 + 10955^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 140849281294 and 140849281303.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35212320335 + ... + 35212320338.

Almost surely, 2^140849281346 is an apocalyptic number.

140849281346 is a deficient number, since it is larger than the sum of its proper divisors (70424640676).

140849281346 is an equidigital number, since it uses as much as digits as its factorization.

140849281346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70424640675.

The product of its (nonzero) digits is 1327104, while the sum is 50.

The spelling of 140849281346 in words is "one hundred forty billion, eight hundred forty-nine million, two hundred eighty-one thousand, three hundred forty-six".