1021049 has 4 divisors (see below), whose sum is σ = 1023120. Its totient is φ = 1018980.

The previous prime is 1021043. The next prime is 1021067. The reversal of 1021049 is 9401201.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9401201 = 1223 ⋅7687.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021043) 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, 182 + ... + 1440.

It is an arithmetic number, because the mean of its divisors is an integer number (255780).

2^1021049 is an apocalyptic number.

It is an amenable number.

1021049 is a deficient number, since it is larger than the sum of its proper divisors (2071).

1021049 is an equidigital number, since it uses as much as digits as its factorization.

1021049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2070.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1021049 is about 1010.4696927667. The cubic root of 1021049 is about 100.6967672122.

The spelling of 1021049 in words is "one million, twenty-one thousand, forty-nine".