145109484 has 216 divisors, whose sum is σ = 446033952. Its totient is φ = 39536640.

The previous prime is 145109483. The next prime is 145109551. The reversal of 145109484 is 484901541.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 6.

It is a zygodrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (145109483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2378814 + ... + 2378874.

It is an arithmetic number, because the mean of its divisors is an integer number (2064972).

Almost surely, 2^145109484 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145109484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223016976).

145109484 is an abundant number, since it is smaller than the sum of its proper divisors (300924468).

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

145109484 is a wasteful number, since it uses less digits than its factorization.

145109484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 145109484 is about 12046.1397966319. The cubic root of 145109484 is about 525.4909801479.

The spelling of 145109484 in words is "one hundred forty-five million, one hundred nine thousand, four hundred eighty-four".