1023001 has 8 divisors (see below), whose sum is σ = 1189440. Its totient is φ = 861648.

The previous prime is 1022981. The next prime is 1023019. The reversal of 1023001 is 1003201.

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 1023001 - 2¹⁷ = 891929 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (7).

1023001 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1023041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 826 + ... + 1651.

It is an arithmetic number, because the mean of its divisors is an integer number (148680).

2^1023001 is an apocalyptic number.

1023001 is the 826-th pentagonal number.

It is an amenable number.

1023001 is a deficient number, since it is larger than the sum of its proper divisors (166439).

1023001 is an equidigital number, since it uses as much as digits as its factorization.

1023001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2543.

The product of its (nonzero) digits is 6, while the sum is 7.

The square root of 1023001 is about 1011.4351190264. The cubic root of 1023001 is about 100.7608956931.

Adding to 1023001 its reverse (1003201), we get a palindrome (2026202).

The spelling of 1023001 in words is "one million, twenty-three thousand, one".