145730302 has 4 divisors (see below), whose sum is σ = 218595456. Its totient is φ = 72865150.

The previous prime is 145730261. The next prime is 145730303. The reversal of 145730302 is 203037541.

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

It is a super-2 number, since 2×145730302² = 42474641842022408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145730303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36432574 + ... + 36432577.

It is an arithmetic number, because the mean of its divisors is an integer number (54648864).

Almost surely, 2^145730302 is an apocalyptic number.

145730302 is a deficient number, since it is larger than the sum of its proper divisors (72865154).

145730302 is an equidigital number, since it uses as much as digits as its factorization.

145730302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72865153.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 145730302 is about 12071.8806322793. The cubic root of 145730302 is about 526.2393119436.

Adding to 145730302 its reverse (203037541), we get a palindrome (348767843).

The spelling of 145730302 in words is "one hundred forty-five million, seven hundred thirty thousand, three hundred two".