1000423199 has 4 divisors (see below), whose sum is σ = 1001070600. Its totient is φ = 999775800.

The previous prime is 1000423147. The next prime is 1000423201. The reversal of 1000423199 is 9913240001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9913240001 = 7 ⋅1416177143.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1000423199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003423199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321377 + ... + 324474.

It is an arithmetic number, because the mean of its divisors is an integer number (250267650).

Almost surely, 2^1000423199 is an apocalyptic number.

1000423199 is a deficient number, since it is larger than the sum of its proper divisors (647401).

1000423199 is an equidigital number, since it uses as much as digits as its factorization.

1000423199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647400.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 1000423199 is about 31629.4672576065. The cubic root of 1000423199 is about 1000.1410464383.

The spelling of 1000423199 in words is "one billion, four hundred twenty-three thousand, one hundred ninety-nine".