145335552 has 36 divisors (see below), whose sum is σ = 386806560. Its totient is φ = 48444928.

The previous prime is 145335523. The next prime is 145335569. The reversal of 145335552 is 255533541.

It is a happy number.

145335552 is nontrivially palindromic in base 15.

It is a super-2 number, since 2×145335552² = 42244845350289408, which contains 22 as substring.

It is a congruent number.

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, 93852 + ... + 95387.

Almost surely, 2^145335552 is an apocalyptic number.

145335552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145335552 is an abundant number, since it is smaller than the sum of its proper divisors (241471008).

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

145335552 is an equidigital number, since it uses as much as digits as its factorization.

145335552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189258 (or 189244 counting only the distinct ones).

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

The square root of 145335552 is about 12055.5195657425. The cubic root of 145335552 is about 525.7637283591.

The spelling of 145335552 in words is "one hundred forty-five million, three hundred thirty-five thousand, five hundred fifty-two".