816154412 has 6 divisors (see below), whose sum is σ = 1428270228. Its totient is φ = 408077204.

The previous prime is 816154393. The next prime is 816154421. The reversal of 816154412 is 214451618.

It is a super-2 number, since 2×816154412² = 1332216048454131488, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102019298 + ... + 102019305.

It is an arithmetic number, because the mean of its divisors is an integer number (238045038).

Almost surely, 2^816154412 is an apocalyptic number.

It is an amenable number.

816154412 is a deficient number, since it is larger than the sum of its proper divisors (612115816).

816154412 is a wasteful number, since it uses less digits than its factorization.

816154412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204038607 (or 204038605 counting only the distinct ones).

The product of its digits is 7680, while the sum is 32.

The square root of 816154412 is about 28568.4163369270. The cubic root of 816154412 is about 934.5246850600.

The spelling of 816154412 in words is "eight hundred sixteen million, one hundred fifty-four thousand, four hundred twelve".