145091184 has 80 divisors (see below), whose sum is σ = 435448320. Its totient is φ = 40769280.

The previous prime is 145091179. The next prime is 145091189. The reversal of 145091184 is 481190541.

It is an interprime number because it is at equal distance from previous prime (145091179) and next prime (145091189).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145091189) 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 15 ways as a sum of consecutive naturals, for example, 16957 + ... + 24035.

It is an arithmetic number, because the mean of its divisors is an integer number (5443104).

Almost surely, 2^145091184 is an apocalyptic number.

145091184 is a gapful number since it is divisible by the number (14) 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 145091184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217724160).

145091184 is an abundant number, since it is smaller than the sum of its proper divisors (290357136).

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

145091184 is a wasteful number, since it uses less digits than its factorization.

145091184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7158 (or 7152 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 145091184 is about 12045.3801932525. The cubic root of 145091184 is about 525.4688890367.

The spelling of 145091184 in words is "one hundred forty-five million, ninety-one thousand, one hundred eighty-four".