145517226 has 32 divisors (see below), whose sum is σ = 299920320. Its totient is φ = 47033856.

The previous prime is 145517221. The next prime is 145517227. The reversal of 145517226 is 622715541.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (145517221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76090 + ... + 77978.

It is an arithmetic number, because the mean of its divisors is an integer number (9372510).

Almost surely, 2^145517226 is an apocalyptic number.

145517226 is an abundant number, since it is smaller than the sum of its proper divisors (154403094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145517226 is a wasteful number, since it uses less digits than its factorization.

145517226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2278.

The product of its digits is 16800, while the sum is 33.

The square root of 145517226 is about 12063.0521013548. The cubic root of 145517226 is about 525.9827108583.

It can be divided in two parts, 1455 and 17226, that added together give a palindrome (18681).

The spelling of 145517226 in words is "one hundred forty-five million, five hundred seventeen thousand, two hundred twenty-six".