145811448 has 64 divisors (see below), whose sum is σ = 428868000. Its totient is φ = 45743616.

The previous prime is 145811423. The next prime is 145811461. The reversal of 145811448 is 844118541.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16183 + ... + 23526.

Almost surely, 2^145811448 is an apocalyptic number.

145811448 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

145811448 is an abundant number, since it is smaller than the sum of its proper divisors (283056552).

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

145811448 is a wasteful number, since it uses less digits than its factorization.

145811448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39741 (or 39731 counting only the distinct ones).

The product of its digits is 20480, while the sum is 36.

The square root of 145811448 is about 12075.2411156051. The cubic root of 145811448 is about 526.3369678902.

Adding to 145811448 its reverse (844118541), we get a palindrome (989929989).

The spelling of 145811448 in words is "one hundred forty-five million, eight hundred eleven thousand, four hundred forty-eight".