140470482781 has 4 divisors (see below), whose sum is σ = 140472268092. Its totient is φ = 140468697472.

The previous prime is 140470482749. The next prime is 140470482811. The reversal of 140470482781 is 187284074041.

It is a happy number.

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 75684961881 + 64785520900 = 275109^2 + 254530^2 .

It is a cyclic number.

It is not a de Polignac number, because 140470482781 - 2⁵ = 140470482749 is a prime.

It is a super-2 number, since 2×140470482781² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140470482281) 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, 768916 + ... + 933901.

It is an arithmetic number, because the mean of its divisors is an integer number (35118067023).

Almost surely, 2^140470482781 is an apocalyptic number.

It is an amenable number.

140470482781 is a deficient number, since it is larger than the sum of its proper divisors (1785311).

140470482781 is an equidigital number, since it uses as much as digits as its factorization.

140470482781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785310.

The product of its (nonzero) digits is 401408, while the sum is 46.

The spelling of 140470482781 in words is "one hundred forty billion, four hundred seventy million, four hundred eighty-two thousand, seven hundred eighty-one".