145549120 has 112 divisors (see below), whose sum is σ = 375269760. Its totient is φ = 53581824.

The previous prime is 145549099. The next prime is 145549153. The reversal of 145549120 is 21945541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 224637 + ... + 225283.

Almost surely, 2^145549120 is an apocalyptic number.

145549120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145549120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187634880).

145549120 is an abundant number, since it is smaller than the sum of its proper divisors (229720640).

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

145549120 is a wasteful number, since it uses less digits than its factorization.

145549120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720 (or 710 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 145549120 is about 12064.3739995078. The cubic root of 145549120 is about 526.0211357871.

The spelling of 145549120 in words is "one hundred forty-five million, five hundred forty-nine thousand, one hundred twenty".