1612889073 has 12 divisors (see below), whose sum is σ = 2335041280. Its totient is φ = 1072807416.

The previous prime is 1612889071. The next prime is 1612889087. The reversal of 1612889073 is 3709882161.

It is not a de Polignac number, because 1612889073 - 2¹ = 1612889071 is a prime.

It is a super-2 number, since 2×1612889073² = 5202822323605598658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1612889071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 200161 + ... + 208062.

Almost surely, 2^1612889073 is an apocalyptic number.

It is an amenable number.

1612889073 is a deficient number, since it is larger than the sum of its proper divisors (722152207).

1612889073 is a wasteful number, since it uses less digits than its factorization.

1612889073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408668 (or 408665 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 1612889073 is about 40160.7902437191. The cubic root of 1612889073 is about 1172.7393559681.

The spelling of 1612889073 in words is "one billion, six hundred twelve million, eight hundred eighty-nine thousand, seventy-three".