145434450 has 144 divisors (see below), whose sum is σ = 429508224. Its totient is φ = 32457600.

The previous prime is 145434437. The next prime is 145434463. The reversal of 145434450 is 54434541.

It is an interprime number because it is at equal distance from previous prime (145434437) and next prime (145434463).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

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, 345240 + ... + 345660.

It is an arithmetic number, because the mean of its divisors is an integer number (2982696).

Almost surely, 2^145434450 is an apocalyptic number.

145434450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 145434450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214754112).

145434450 is an abundant number, since it is smaller than the sum of its proper divisors (284073774).

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

145434450 is a wasteful number, since it uses less digits than its factorization.

145434450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497 (or 485 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 145434450 is about 12059.6206407996. The cubic root of 145434450 is about 525.8829586292.

Adding to 145434450 its reverse (54434541), we get a palindrome (199868991).

Subtracting from 145434450 its reverse (54434541), we obtain a palindrome (90999909).

The spelling of 145434450 in words is "one hundred forty-five million, four hundred thirty-four thousand, four hundred fifty".