10387890241 has 3 divisors (see below), whose sum is σ = 10387992163. Its totient is φ = 10387788320.

The previous prime is 10387890217. The next prime is 10387890259. The reversal of 10387890241 is 14209878301.

The square root of 10387890241 is 101921.

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., 89699841 + 10298190400 = 9471^2 + 101480^2 .

It is not a de Polignac number, because 10387890241 - 2²³ = 10379501633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10387890211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 50961 + ... + 152881.

Almost surely, 2^10387890241 is an apocalyptic number.

10387890241 is the 101921-st square number.

10387890241 is the 50961-st centered octagonal number.

It is an amenable number.

10387890241 is a deficient number, since it is larger than the sum of its proper divisors (101922).

10387890241 is an frugal number, since it uses more digits than its factorization.

10387890241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203842 (or 101921 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 43.

The spelling of 10387890241 in words is "ten billion, three hundred eighty-seven million, eight hundred ninety thousand, two hundred forty-one".