145225344 has 64 divisors (see below), whose sum is σ = 420835680. Its totient is φ = 44006400.

The previous prime is 145225331. The next prime is 145225361. The reversal of 145225344 is 443522541.

It is a tau number, because it is divible by the number of its divisors (64).

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 7 ways as a sum of consecutive naturals, for example, 12967 + ... + 21414.

Almost surely, 2^145225344 is an apocalyptic number.

It is an amenable number.

145225344 is an abundant number, since it is smaller than the sum of its proper divisors (275610336).

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

145225344 is a wasteful number, since it uses less digits than its factorization.

145225344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34409 (or 34397 counting only the distinct ones).

The product of its digits is 19200, while the sum is 30.

The square root of 145225344 is about 12050.9478465389. The cubic root of 145225344 is about 525.6307991469.

Adding to 145225344 its reverse (443522541), we get a palindrome (588747885).

It can be divided in two parts, 1452 and 25344, that added together give a triangular number (26796 = T₂₃₁).

The spelling of 145225344 in words is "one hundred forty-five million, two hundred twenty-five thousand, three hundred forty-four".