145240330 has 8 divisors (see below), whose sum is σ = 261432612. Its totient is φ = 58096128.

The previous prime is 145240321. The next prime is 145240343. The reversal of 145240330 is 33042541.

It can be written as a sum of positive squares in 2 ways, for example, as 140209281 + 5031049 = 11841^2 + 2243^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7262007 + ... + 7262026.

Almost surely, 2^145240330 is an apocalyptic number.

145240330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145240330 is a deficient number, since it is larger than the sum of its proper divisors (116192282).

145240330 is a wasteful number, since it uses less digits than its factorization.

145240330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14524040.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 145240330 is about 12051.5696073167. The cubic root of 145240330 is about 525.6488787098.

Adding to 145240330 its reverse (33042541), we get a palindrome (178282871).

The spelling of 145240330 in words is "one hundred forty-five million, two hundred forty thousand, three hundred thirty".