1007123 has 4 divisors (see below), whose sum is σ = 1084608. Its totient is φ = 929640.

The previous prime is 1007119. The next prime is 1007129. The reversal of 1007123 is 3217001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1007123 - 2² = 1007119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1007098 and 1007107.

It is not an unprimeable number, because it can be changed into a prime (1007129) 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, 38723 + ... + 38748.

It is an arithmetic number, because the mean of its divisors is an integer number (271152).

2^1007123 is an apocalyptic number.

1007123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1007123 is a deficient number, since it is larger than the sum of its proper divisors (77485).

1007123 is an equidigital number, since it uses as much as digits as its factorization.

1007123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77484.

The product of its (nonzero) digits is 42, while the sum is 14.

The square root of 1007123 is about 1003.5551803464. Note that the first 3 decimals coincide. The cubic root of 1007123 is about 100.2368718078.

The spelling of 1007123 in words is "one million, seven thousand, one hundred twenty-three".