1000109951 has 2 divisors, whose sum is σ = 1000109952. Its totient is φ = 1000109950.

The previous prime is 1000109927. The next prime is 1000109959. The reversal of 1000109951 is 1599010001.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1000109951 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1000109951.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000109959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500054975 + 500054976.

It is an arithmetic number, because the mean of its divisors is an integer number (500054976).

Almost surely, 2^1000109951 is an apocalyptic number.

1000109951 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000109951 is an equidigital number, since it uses as much as digits as its factorization.

1000109951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 405, while the sum is 26.

The square root of 1000109951 is about 31624.5150318546. The cubic root of 1000109951 is about 1000.0366489902.

Adding to 1000109951 its reverse (1599010001), we get a palindrome (2599119952).

The spelling of 1000109951 in words is "one billion, one hundred nine thousand, nine hundred fifty-one".