1025431 has 8 divisors (see below), whose sum is σ = 1134864. Its totient is φ = 918720.

The previous prime is 1025419. The next prime is 1025443. The reversal of 1025431 is 1345201.

It is an interprime number because it is at equal distance from previous prime (1025419) and next prime (1025443).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1025431 - 2⁷ = 1025303 is a prime.

It is a super-2 number, since 2×1025431² = 2103017471522, which contains 22 as substring.

It is a Duffinian number.

1025431 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025231) 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 7 ways as a sum of consecutive naturals, for example, 165 + ... + 1441.

It is an arithmetic number, because the mean of its divisors is an integer number (141858).

2^1025431 is an apocalyptic number.

1025431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1025431 is a deficient number, since it is larger than the sum of its proper divisors (109433).

1025431 is a wasteful number, since it uses less digits than its factorization.

1025431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1025431 is about 1012.6356699228. The cubic root of 1025431 is about 100.8406138829.

The spelling of 1025431 in words is "one million, twenty-five thousand, four hundred thirty-one".