140981863402 has 4 divisors (see below), whose sum is σ = 211472795106. Its totient is φ = 70490931700.

The previous prime is 140981863397. The next prime is 140981863403. The reversal of 140981863402 is 204368189041.

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

It can be written as a sum of positive squares in only one way, i.e., 140753279241 + 228584161 = 375171^2 + 15119^2 .

It is not an unprimeable number, because it can be changed into a prime (140981863403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35245465849 + ... + 35245465852.

Almost surely, 2^140981863402 is an apocalyptic number.

140981863402 is a deficient number, since it is larger than the sum of its proper divisors (70490931704).

140981863402 is an equidigital number, since it uses as much as digits as its factorization.

140981863402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70490931703.

The product of its (nonzero) digits is 331776, while the sum is 46.

The spelling of 140981863402 in words is "one hundred forty billion, nine hundred eighty-one million, eight hundred sixty-three thousand, four hundred two".