145468218 has 64 divisors (see below), whose sum is σ = 370621440. Its totient is φ = 37055232.

The previous prime is 145468187. The next prime is 145468229. The reversal of 145468218 is 812864541.

It is a super-2 number, since 2×145468218² = 42322004896191048, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8205 + ... + 18927.

It is an arithmetic number, because the mean of its divisors is an integer number (5790960).

Almost surely, 2^145468218 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145468218, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185310720).

145468218 is an abundant number, since it is smaller than the sum of its proper divisors (225153222).

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

145468218 is a wasteful number, since it uses less digits than its factorization.

145468218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10771.

The product of its digits is 61440, while the sum is 39.

The square root of 145468218 is about 12061.0206035808. The cubic root of 145468218 is about 525.9236565554.

The spelling of 145468218 in words is "one hundred forty-five million, four hundred sixty-eight thousand, two hundred eighteen".