145305346 has 8 divisors (see below), whose sum is σ = 218030400. Its totient is φ = 72628548.

The previous prime is 145305343. The next prime is 145305371. The reversal of 145305346 is 643503541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×145305346² = 42227287152359432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145305343) 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 in 3 ways as a sum of consecutive naturals, for example, 3246 + ... + 17353.

It is an arithmetic number, because the mean of its divisors is an integer number (27253800).

Almost surely, 2^145305346 is an apocalyptic number.

145305346 is a deficient number, since it is larger than the sum of its proper divisors (72725054).

145305346 is a wasteful number, since it uses less digits than its factorization.

145305346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24128.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 145305346 is about 12054.2667134919. The cubic root of 145305346 is about 525.7273015768.

Adding to 145305346 its reverse (643503541), we get a palindrome (788808887).

The spelling of 145305346 in words is "one hundred forty-five million, three hundred five thousand, three hundred forty-six".