1000995101 has 2 divisors, whose sum is σ = 1000995102. Its totient is φ = 1000995100.

The previous prime is 1000995043. The next prime is 1000995103. The reversal of 1000995101 is 1015990001.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 983136025 + 17859076 = 31355^2 + 4226^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1000995101 is a prime.

Together with 1000995103, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000995103) 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 as a sum of consecutive naturals, namely, 500497550 + 500497551.

It is an arithmetic number, because the mean of its divisors is an integer number (500497551).

Almost surely, 2^1000995101 is an apocalyptic number.

It is an amenable number.

1000995101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000995101 is an equidigital number, since it uses as much as digits as its factorization.

1000995101 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1000995101 is about 31638.5066177277. The cubic root of 1000995101 is about 1000.3315903690.

The spelling of 1000995101 in words is "one billion, nine hundred ninety-five thousand, one hundred one".