1025142 has 8 divisors (see below), whose sum is σ = 2050296. Its totient is φ = 341712.

The previous prime is 1025137. The next prime is 1025147. The reversal of 1025142 is 2415201.

It is an interprime number because it is at equal distance from previous prime (1025137) and next prime (1025147).

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

1025142 is an admirable number.

It is a super-2 number, since 2×1025142² = 2101832240328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025147) 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, 85423 + ... + 85434.

It is an arithmetic number, because the mean of its divisors is an integer number (256287).

2^1025142 is an apocalyptic number.

1025142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1025142 is a wasteful number, since it uses less digits than its factorization.

1025142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170862.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 1025142 is about 1012.4929629385. The cubic root of 1025142 is about 100.8311395982.

It can be divided in two parts, 10 and 25142, that added together give a palindrome (25152).

The spelling of 1025142 in words is "one million, twenty-five thousand, one hundred forty-two".