999900151 has 2 divisors, whose sum is σ = 999900152. Its totient is φ = 999900150.

The previous prime is 999900131. The next prime is 999900157. The reversal of 999900151 is 151009999.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 999900151 - 2¹⁷ = 999769079 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 999900098 and 999900107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999900157) 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, 499950075 + 499950076.

It is an arithmetic number, because the mean of its divisors is an integer number (499950076).

Almost surely, 2^999900151 is an apocalyptic number.

999900151 is a deficient number, since it is larger than the sum of its proper divisors (1).

999900151 is an equidigital number, since it uses as much as digits as its factorization.

999900151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32805, while the sum is 43.

The square root of 999900151 is about 31621.1978109622. The cubic root of 999900151 is about 999.9667158922.

The spelling of 999900151 in words is "nine hundred ninety-nine million, nine hundred thousand, one hundred fifty-one".