145981232 has 20 divisors (see below), whose sum is σ = 291963456. Its totient is φ = 70635840.

The previous prime is 145981229. The next prime is 145981327. The reversal of 145981232 is 232189541.

145981232 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 145981192 and 145981201.

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, 146663 + ... + 147654.

Almost surely, 2^145981232 is an apocalyptic number.

It is an amenable number.

145981232 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

145981232 is a wasteful number, since it uses less digits than its factorization.

145981232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294356 (or 294350 counting only the distinct ones).

The product of its digits is 17280, while the sum is 35.

The square root of 145981232 is about 12082.2693232687. The cubic root of 145981232 is about 526.5411789546.

The spelling of 145981232 in words is "one hundred forty-five million, nine hundred eighty-one thousand, two hundred thirty-two".