140888693401 has 4 divisors (see below), whose sum is σ = 141503928100. Its totient is φ = 140273458704.

The previous prime is 140888693389. The next prime is 140888693411. The reversal of 140888693401 is 104396888041.

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 126380250000 + 14508443401 = 355500^2 + 120451^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140888693401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140888693411) 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, 307617006 + ... + 307617463.

It is an arithmetic number, because the mean of its divisors is an integer number (35375982025).

Almost surely, 2^140888693401 is an apocalyptic number.

It is an amenable number.

140888693401 is a deficient number, since it is larger than the sum of its proper divisors (615234699).

140888693401 is an equidigital number, since it uses as much as digits as its factorization.

140888693401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615234698.

The product of its (nonzero) digits is 1327104, while the sum is 52.

The spelling of 140888693401 in words is "one hundred forty billion, eight hundred eighty-eight million, six hundred ninety-three thousand, four hundred one".