145611688 has 16 divisors (see below), whose sum is σ = 273388500. Its totient is φ = 72708096.

The previous prime is 145611607. The next prime is 145611701. The reversal of 145611688 is 886116541.

It can be written as a sum of positive squares in 2 ways, for example, as 142993764 + 2617924 = 11958^2 + 1618^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 145611688.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5683 + ... + 17986.

Almost surely, 2^145611688 is an apocalyptic number.

It is an amenable number.

145611688 is a deficient number, since it is larger than the sum of its proper divisors (127776812).

145611688 is a wasteful number, since it uses less digits than its factorization.

145611688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24444 (or 24440 counting only the distinct ones).

The product of its digits is 46080, while the sum is 40.

The square root of 145611688 is about 12066.9668102635. The cubic root of 145611688 is about 526.0964995211.

The spelling of 145611688 in words is "one hundred forty-five million, six hundred eleven thousand, six hundred eighty-eight".