1009951 has 2 divisors, whose sum is σ = 1009952. Its totient is φ = 1009950.

The previous prime is 1009937. The next prime is 1009963. The reversal of 1009951 is 1599001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1009951 - 2⁹ = 1009439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1009901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 504975 + 504976.

It is an arithmetic number, because the mean of its divisors is an integer number (504976).

2^1009951 is an apocalyptic number.

1009951 is a deficient number, since it is larger than the sum of its proper divisors (1).

1009951 is an equidigital number, since it uses as much as digits as its factorization.

1009951 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 25.

The square root of 1009951 is about 1004.9631834052. The cubic root of 1009951 is about 100.3306057936.

The spelling of 1009951 in words is "one million, nine thousand, nine hundred fifty-one".