145820302 has 4 divisors (see below), whose sum is σ = 218730456. Its totient is φ = 72910150.

The previous prime is 145820291. The next prime is 145820303. The reversal of 145820302 is 203028541.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145820303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36455074 + ... + 36455077.

It is an arithmetic number, because the mean of its divisors is an integer number (54682614).

Almost surely, 2^145820302 is an apocalyptic number.

145820302 is a deficient number, since it is larger than the sum of its proper divisors (72910154).

145820302 is an equidigital number, since it uses as much as digits as its factorization.

145820302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72910153.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 145820302 is about 12075.6077279779. The cubic root of 145820302 is about 526.3476211306.

Adding to 145820302 its reverse (203028541), we get a palindrome (348848843).

The spelling of 145820302 in words is "one hundred forty-five million, eight hundred twenty thousand, three hundred two".