999250141 has 4 divisors (see below), whose sum is σ = 1003652352. Its totient is φ = 994847932.

The previous prime is 999250099. The next prime is 999250159. The reversal of 999250141 is 141052999.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 141052999 = 79 ⋅1785481.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-999250141 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 999250094 and 999250103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999250841) 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, 2200765 + ... + 2201218.

It is an arithmetic number, because the mean of its divisors is an integer number (250913088).

Almost surely, 2^999250141 is an apocalyptic number.

999250141 is the 19993-rd centered pentagonal number.

It is an amenable number.

999250141 is a deficient number, since it is larger than the sum of its proper divisors (4402211).

999250141 is a wasteful number, since it uses less digits than its factorization.

999250141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4402210.

The product of its (nonzero) digits is 29160, while the sum is 40.

The square root of 999250141 is about 31610.9180663897. The cubic root of 999250141 is about 999.7499844975.

The spelling of 999250141 in words is "nine hundred ninety-nine million, two hundred fifty thousand, one hundred forty-one".