999412151 has 4 divisors (see below), whose sum is σ = 1016351400. Its totient is φ = 982472904.

The previous prime is 999412111. The next prime is 999412163. The reversal of 999412151 is 151214999.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-999412151 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 999412099 and 999412108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999412111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8469536 + ... + 8469653.

It is an arithmetic number, because the mean of its divisors is an integer number (254087850).

Almost surely, 2^999412151 is an apocalyptic number.

999412151 is a deficient number, since it is larger than the sum of its proper divisors (16939249).

999412151 is a wasteful number, since it uses less digits than its factorization.

999412151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16939248.

The product of its digits is 29160, while the sum is 41.

The square root of 999412151 is about 31613.4805265096. The cubic root of 999412151 is about 999.8040119245.

The spelling of 999412151 in words is "nine hundred ninety-nine million, four hundred twelve thousand, one hundred fifty-one".