145655748 has 144 divisors (see below), whose sum is σ = 458640000. Its totient is φ = 38029824.

The previous prime is 145655747. The next prime is 145655753. The reversal of 145655748 is 847556541.

145655748 is a `hidden beast` number, since 1 + 4 + 56 + 557 + 48 = 666.

It is not an unprimeable number, because it can be changed into a prime (145655747) 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 47 ways as a sum of consecutive naturals, for example, 138328 + ... + 139376.

It is an arithmetic number, because the mean of its divisors is an integer number (3185000).

Almost surely, 2^145655748 is an apocalyptic number.

145655748 is a gapful number since it is divisible by the number (18) 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 145655748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229320000).

145655748 is an abundant number, since it is smaller than the sum of its proper divisors (312984252).

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

145655748 is a wasteful number, since it uses less digits than its factorization.

145655748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114 (or 1109 counting only the distinct ones).

The product of its digits is 672000, while the sum is 45.

The square root of 145655748 is about 12068.7923173779. The cubic root of 145655748 is about 526.1495572450.

The spelling of 145655748 in words is "one hundred forty-five million, six hundred fifty-five thousand, seven hundred forty-eight".