999151945 has 16 divisors (see below), whose sum is σ = 1308619008. Its totient is φ = 726301440.

The previous prime is 999151903. The next prime is 999151957. The reversal of 999151945 is 549151999.

It is a happy number.

It is not a de Polignac number, because 999151945 - 2⁷ = 999151817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 999151892 and 999151901.

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 15 ways as a sum of consecutive naturals, for example, 174112 + ... + 179758.

It is an arithmetic number, because the mean of its divisors is an integer number (81788688).

Almost surely, 2^999151945 is an apocalyptic number.

It is an amenable number.

999151945 is a deficient number, since it is larger than the sum of its proper divisors (309467063).

999151945 is a wasteful number, since it uses less digits than its factorization.

999151945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8880.

The product of its digits is 656100, while the sum is 52.

The square root of 999151945 is about 31609.3648306953. The cubic root of 999151945 is about 999.7172350515.

The spelling of 999151945 in words is "nine hundred ninety-nine million, one hundred fifty-one thousand, nine hundred forty-five".