1023413 has 2 divisors, whose sum is σ = 1023414. Its totient is φ = 1023412.

The previous prime is 1023409. The next prime is 1023419. The reversal of 1023413 is 3143201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 925444 + 97969 = 962^2 + 313^2 .

It is a cyclic number.

It is not a de Polignac number, because 1023413 - 2² = 1023409 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p₈₀₂₃₁ and since 1023413 and 80231 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1023419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511706 + 511707.

It is an arithmetic number, because the mean of its divisors is an integer number (511707).

2^1023413 is an apocalyptic number.

It is an amenable number.

1023413 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023413 is an equidigital number, since it uses as much as digits as its factorization.

1023413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1023413 is about 1011.6387695220. The cubic root of 1023413 is about 100.7744205796.

Adding to 1023413 its reverse (3143201), we get a palindrome (4166614).

The spelling of 1023413 in words is "one million, twenty-three thousand, four hundred thirteen".