145549056 has 36 divisors (see below), whose sum is σ = 387374792. Its totient is φ = 48516096.

The previous prime is 145549043. The next prime is 145549081. The reversal of 145549056 is 650945541.

It is a super-2 number, since 2×145549056² = 42369055404982272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93991 + ... + 95526.

Almost surely, 2^145549056 is an apocalyptic number.

145549056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

145549056 is an abundant number, since it is smaller than the sum of its proper divisors (241825736).

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

145549056 is an equidigital number, since it uses as much as digits as its factorization.

145549056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189536 (or 189522 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 39.

The square root of 145549056 is about 12064.3713470699. The cubic root of 145549056 is about 526.0210586874.

The spelling of 145549056 in words is "one hundred forty-five million, five hundred forty-nine thousand, fifty-six".