145561832 has 16 divisors (see below), whose sum is σ = 293923140. Its totient is φ = 67182336.

The previous prime is 145561813. The next prime is 145561853. The reversal of 145561832 is 238165541.

It can be written as a sum of positive squares in 2 ways, for example, as 140517316 + 5044516 = 11854^2 + 2246^2 .

It is a junction number, because it is equal to n+sod(n) for n = 145561792 and 145561801.

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, 699713 + ... + 699920.

Almost surely, 2^145561832 is an apocalyptic number.

It is an amenable number.

145561832 is an abundant number, since it is smaller than the sum of its proper divisors (148361308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145561832 is a wasteful number, since it uses less digits than its factorization.

145561832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1399652 (or 1399648 counting only the distinct ones).

The product of its digits is 28800, while the sum is 35.

The square root of 145561832 is about 12064.9008284362. The cubic root of 145561832 is about 526.0364492565.

The spelling of 145561832 in words is "one hundred forty-five million, five hundred sixty-one thousand, eight hundred thirty-two".