145221034 has 16 divisors (see below), whose sum is σ = 259774848. Its totient is φ = 59531472.

The previous prime is 145221031. The next prime is 145221049. The reversal of 145221034 is 430122541.

145221034 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 145220996 and 145221014.

It is not an unprimeable number, because it can be changed into a prime (145221031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225177 + ... + 225820.

It is an arithmetic number, because the mean of its divisors is an integer number (16235928).

Almost surely, 2^145221034 is an apocalyptic number.

145221034 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

145221034 is a deficient number, since it is larger than the sum of its proper divisors (114553814).

145221034 is a wasteful number, since it uses less digits than its factorization.

145221034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451029.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 145221034 is about 12050.7690211040. The cubic root of 145221034 is about 525.6255992025.

Adding to 145221034 its reverse (430122541), we get a palindrome (575343575).

The spelling of 145221034 in words is "one hundred forty-five million, two hundred twenty-one thousand, thirty-four".