1390252890253 has 4 divisors (see below), whose sum is σ = 1393754787100. Its totient is φ = 1386750993408.

The previous prime is 1390252890211. The next prime is 1390252890259. The reversal of 1390252890253 is 3520982520931.

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 1197389628009 + 192863262244 = 1094253^2 + 439162^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1390252890253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1390252890197 and 1390252890206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390252890259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1750947828 + ... + 1750948621.

It is an arithmetic number, because the mean of its divisors is an integer number (348438696775).

Almost surely, 2^{1390252890253} is an apocalyptic number.

It is an amenable number.

1390252890253 is a deficient number, since it is larger than the sum of its proper divisors (3501896847).

1390252890253 is an equidigital number, since it uses as much as digits as its factorization.

1390252890253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3501896846.

The product of its (nonzero) digits is 1166400, while the sum is 49.

The spelling of 1390252890253 in words is "one trillion, three hundred ninety billion, two hundred fifty-two million, eight hundred ninety thousand, two hundred fifty-three".