145442154 has 64 divisors (see below), whose sum is σ = 344010240. Its totient is φ = 40413120.

The previous prime is 145442149. The next prime is 145442189. The reversal of 145442154 is 451244541.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 153109 + ... + 154055.

It is an arithmetic number, because the mean of its divisors is an integer number (5375160).

Almost surely, 2^145442154 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145442154, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172005120).

145442154 is an abundant number, since it is smaller than the sum of its proper divisors (198568086).

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

145442154 is a wasteful number, since it uses less digits than its factorization.

145442154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155.

The product of its digits is 12800, while the sum is 30.

The square root of 145442154 is about 12059.9400496022. The cubic root of 145442154 is about 525.8922442118.

Adding to 145442154 its reverse (451244541), we get a palindrome (596686695).

The spelling of 145442154 in words is "one hundred forty-five million, four hundred forty-two thousand, one hundred fifty-four".