145302450 has 48 divisors (see below), whose sum is σ = 363696960. Its totient is φ = 38387520.

The previous prime is 145302413. The next prime is 145302457. The reversal of 145302450 is 54203541.

It is a super-2 number, since 2×145302450² = 42225603952005000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145302450.

It is not an unprimeable number, because it can be changed into a prime (145302457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11907 + ... + 20793.

It is an arithmetic number, because the mean of its divisors is an integer number (7577020).

Almost surely, 2^145302450 is an apocalyptic number.

145302450 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 145302450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181848480).

145302450 is an abundant number, since it is smaller than the sum of its proper divisors (218394510).

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

145302450 is a wasteful number, since it uses less digits than its factorization.

145302450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9011 (or 9006 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 145302450 is about 12054.1465894521. The cubic root of 145302450 is about 525.7238088942.

Adding to 145302450 its reverse (54203541), we get a palindrome (199505991).

The spelling of 145302450 in words is "one hundred forty-five million, three hundred two thousand, four hundred fifty".