145143306 has 128 divisors (see below), whose sum is σ = 408913920. Its totient is φ = 37065600.

The previous prime is 145143301. The next prime is 145143307. The reversal of 145143306 is 603341541.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 145143306.

It is not an unprimeable number, because it can be changed into a prime (145143301) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 278326 + ... + 278846.

It is an arithmetic number, because the mean of its divisors is an integer number (3194640).

Almost surely, 2^145143306 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145143306, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204456960).

145143306 is an abundant number, since it is smaller than the sum of its proper divisors (263770614).

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

145143306 is a wasteful number, since it uses less digits than its factorization.

145143306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617 (or 611 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 145143306 is about 12047.5435670513. The cubic root of 145143306 is about 525.5318039791.

Adding to 145143306 its reverse (603341541), we get a palindrome (748484847).

The spelling of 145143306 in words is "one hundred forty-five million, one hundred forty-three thousand, three hundred six".