1025381 has 12 divisors (see below), whose sum is σ = 1215648. Its totient is φ = 847152.

The previous prime is 1025351. The next prime is 1025383. The reversal of 1025381 is 1835201.

It is not a de Polignac number, because 1025381 - 2¹⁰ = 1024357 is a prime.

It is a super-2 number, since 2×1025381² = 2102812390322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025383) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9530 + ... + 9636.

It is an arithmetic number, because the mean of its divisors is an integer number (101304).

2^1025381 is an apocalyptic number.

It is an amenable number.

1025381 is a deficient number, since it is larger than the sum of its proper divisors (190267).

1025381 is an equidigital number, since it uses as much as digits as its factorization.

With its successor (1025382) it forms a Ruth-Aaron pair, since the sum of their prime factors is the same (188).

1025381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1025381 is about 1012.6109815719. The cubic root of 1025381 is about 100.8389748606.

The spelling of 1025381 in words is "one million, twenty-five thousand, three hundred eighty-one".