145468448 has 12 divisors (see below), whose sum is σ = 286391070. Its totient is φ = 72734208.

The previous prime is 145468429. The next prime is 145468471. The reversal of 145468448 is 844864541.

It can be written as a sum of positive squares in only one way, i.e., 144672784 + 795664 = 12028^2 + 892^2 .

It is a super-2 number, since 2×145468448² = 42322138727057408, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145468399 and 145468408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2272913 + ... + 2272976.

Almost surely, 2^145468448 is an apocalyptic number.

It is an amenable number.

145468448 is a deficient number, since it is larger than the sum of its proper divisors (140922622).

145468448 is an equidigital number, since it uses as much as digits as its factorization.

145468448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4545899 (or 4545891 counting only the distinct ones).

The product of its digits is 491520, while the sum is 44.

The square root of 145468448 is about 12061.0301384252. The cubic root of 145468448 is about 525.9239337348.

The spelling of 145468448 in words is "one hundred forty-five million, four hundred sixty-eight thousand, four hundred forty-eight".