145440346 has 8 divisors (see below), whose sum is σ = 218331360. Its totient is φ = 72663228.

The previous prime is 145440341. The next prime is 145440359. The reversal of 145440346 is 643044541.

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

It is not an unprimeable number, because it can be changed into a prime (145440341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25206 + ... + 30433.

It is an arithmetic number, because the mean of its divisors is an integer number (27291420).

Almost surely, 2^145440346 is an apocalyptic number.

145440346 is a deficient number, since it is larger than the sum of its proper divisors (72891014).

145440346 is a wasteful number, since it uses less digits than its factorization.

145440346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56948.

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 145440346 is about 12059.8650904560. The cubic root of 145440346 is about 525.8900650702.

Adding to 145440346 its reverse (643044541), we get a palindrome (788484887).

The spelling of 145440346 in words is "one hundred forty-five million, four hundred forty thousand, three hundred forty-six".