145553532 has 24 divisors (see below), whose sum is σ = 344279376. Its totient is φ = 47852928.

The previous prime is 145553521. The next prime is 145553533. The reversal of 145553532 is 235355541.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 145553493 and 145553502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145553533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82203 + ... + 83954.

It is an arithmetic number, because the mean of its divisors is an integer number (14344974).

Almost surely, 2^145553532 is an apocalyptic number.

145553532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145553532 is an abundant number, since it is smaller than the sum of its proper divisors (198725844).

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

145553532 is a wasteful number, since it uses less digits than its factorization.

145553532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166237 (or 166235 counting only the distinct ones).

The product of its digits is 45000, while the sum is 33.

The square root of 145553532 is about 12064.5568505437. The cubic root of 145553532 is about 526.0264507895.

The spelling of 145553532 in words is "one hundred forty-five million, five hundred fifty-three thousand, five hundred thirty-two".