145534518 has 48 divisors (see below), whose sum is σ = 335864880. Its totient is φ = 45385728.

The previous prime is 145534481. The next prime is 145534531. The reversal of 145534518 is 815435541.

145534518 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53446 + ... + 56102.

It is an arithmetic number, because the mean of its divisors is an integer number (6997185).

Almost surely, 2^145534518 is an apocalyptic number.

145534518 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 145534518, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167932440).

145534518 is an abundant number, since it is smaller than the sum of its proper divisors (190330362).

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

145534518 is a wasteful number, since it uses less digits than its factorization.

145534518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2861 (or 2858 counting only the distinct ones).

The product of its digits is 48000, while the sum is 36.

The square root of 145534518 is about 12063.7688140979. The cubic root of 145534518 is about 526.0035444349.

The spelling of 145534518 in words is "one hundred forty-five million, five hundred thirty-four thousand, five hundred eighteen".