1002141 has 12 divisors (see below), whose sum is σ = 1654432. Its totient is φ = 572616.

The previous prime is 1002121. The next prime is 1002143. The reversal of 1002141 is 1412001.

It is a happy number.

It is not a de Polignac number, because 1002141 - 2⁵ = 1002109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002143) 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, 7891 + ... + 8016.

2^1002141 is an apocalyptic number.

It is an amenable number.

1002141 is a deficient number, since it is larger than the sum of its proper divisors (652291).

1002141 is a wasteful number, since it uses less digits than its factorization.

1002141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15920 (or 15917 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1002141 is about 1001.0699276274. The cubic root of 1002141 is about 100.0713157952.

Adding to 1002141 its reverse (1412001), we get a palindrome (2414142).

The spelling of 1002141 in words is "one million, two thousand, one hundred forty-one".