2990108431249 has 3 divisors (see below), whose sum is σ = 2990110160443. Its totient is φ = 2990106702056.

The previous prime is 2990108431217. The next prime is 2990108431327. The reversal of 2990108431249 is 9421348010992.

The square root of 2990108431249 is 1729193.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 2194501518225 + 795606913024 = 1481385^2 + 891968^2 .

It is not a de Polignac number, because 2990108431249 - 2⁵ = 2990108431217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2990108431196 and 2990108431205.

It is not an unprimeable number, because it can be changed into a prime (2990108438249) 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 2 ways as a sum of consecutive naturals, for example, 864597 + ... + 2593789.

Almost surely, 2^{2990108431249} is an apocalyptic number.

2990108431249 is the 1729193-rd square number.

2990108431249 is the 864597-th centered octagonal number.

It is an amenable number.

2990108431249 is a deficient number, since it is larger than the sum of its proper divisors (1729194).

2990108431249 is an frugal number, since it uses more digits than its factorization.

2990108431249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3458386 (or 1729193 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 52.

The spelling of 2990108431249 in words is "two trillion, nine hundred ninety billion, one hundred eight million, four hundred thirty-one thousand, two hundred forty-nine".