145546320 has 40 divisors (see below), whose sum is σ = 451194336. Its totient is φ = 38812288.

The previous prime is 145546309. The next prime is 145546337. The reversal of 145546320 is 23645541.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 302982 + ... + 303461.

Almost surely, 2^145546320 is an apocalyptic number.

145546320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145546320 is an abundant number, since it is smaller than the sum of its proper divisors (305648016).

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

145546320 is a wasteful number, since it uses less digits than its factorization.

145546320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606459 (or 606453 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 145546320 is about 12064.2579548019. The cubic root of 145546320 is about 526.0177626563.

The spelling of 145546320 in words is "one hundred forty-five million, five hundred forty-six thousand, three hundred twenty".