999401145 has 32 divisors (see below), whose sum is σ = 1628546688. Its totient is φ = 523235328.

The previous prime is 999401119. The next prime is 999401167. The reversal of 999401145 is 541104999.

It is a happy number.

It is not a de Polignac number, because 999401145 - 2¹¹ = 999399097 is a prime.

It is a super-2 number, since 2×999401145² = 1997605297254622050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 999401097 and 999401106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 317017 + ... + 320153.

It is an arithmetic number, because the mean of its divisors is an integer number (50892084).

Almost surely, 2^999401145 is an apocalyptic number.

It is an amenable number.

999401145 is a deficient number, since it is larger than the sum of its proper divisors (629145543).

999401145 is a wasteful number, since it uses less digits than its factorization.

999401145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3529.

The product of its (nonzero) digits is 58320, while the sum is 42.

The square root of 999401145 is about 31613.3064547193. The cubic root of 999401145 is about 999.8003418059.

The spelling of 999401145 in words is "nine hundred ninety-nine million, four hundred one thousand, one hundred forty-five".