1021413 has 8 divisors (see below), whose sum is σ = 1375776. Its totient is φ = 674000.

The previous prime is 1021403. The next prime is 1021417. The reversal of 1021413 is 3141201.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1021413 - 2⁵ = 1021381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021417) 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, 1383 + ... + 1988.

It is an arithmetic number, because the mean of its divisors is an integer number (171972).

2^1021413 is an apocalyptic number.

It is an amenable number.

1021413 is a deficient number, since it is larger than the sum of its proper divisors (354363).

1021413 is a wasteful number, since it uses less digits than its factorization.

1021413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3475.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1021413 is about 1010.6497909761. The cubic root of 1021413 is about 100.7087317926.

Adding to 1021413 its reverse (3141201), we get a palindrome (4162614).

The spelling of 1021413 in words is "one million, twenty-one thousand, four hundred thirteen".