145523330 has 16 divisors (see below), whose sum is σ = 265852800. Its totient is φ = 57340272.

The previous prime is 145523311. The next prime is 145523359. The reversal of 145523330 is 33325541.

It is a self number, because there is not a number n which added to its sum of digits gives 145523330.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107930 + ... + 109269.

It is an arithmetic number, because the mean of its divisors is an integer number (16615800).

Almost surely, 2^145523330 is an apocalyptic number.

145523330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145523330 is a deficient number, since it is larger than the sum of its proper divisors (120329470).

145523330 is a wasteful number, since it uses less digits than its factorization.

145523330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217273.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 145523330 is about 12063.3051026657. The cubic root of 145523330 is about 525.9900652077.

Adding to 145523330 its reverse (33325541), we get a palindrome (178848871).

The spelling of 145523330 in words is "one hundred forty-five million, five hundred twenty-three thousand, three hundred thirty".