1025841381 has 4 divisors (see below), whose sum is σ = 1367788512. Its totient is φ = 683894252.

The previous prime is 1025841379. The next prime is 1025841413. The reversal of 1025841381 is 1831485201.

1025841381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1025841381 - 2¹ = 1025841379 is a prime.

It is a super-2 number, since 2×1025841381² = 2104701077943974322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025841281) 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, 170973561 + ... + 170973566.

It is an arithmetic number, because the mean of its divisors is an integer number (341947128).

Almost surely, 2^1025841381 is an apocalyptic number.

It is an amenable number.

1025841381 is a deficient number, since it is larger than the sum of its proper divisors (341947131).

1025841381 is an equidigital number, since it uses as much as digits as its factorization.

1025841381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341947130.

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 1025841381 is about 32028.7586553085. The cubic root of 1025841381 is about 1008.5406434178.

The spelling of 1025841381 in words is "one billion, twenty-five million, eight hundred forty-one thousand, three hundred eighty-one".