145422048 has 96 divisors (see below), whose sum is σ = 408723840. Its totient is φ = 45135360.

The previous prime is 145422007. The next prime is 145422049. The reversal of 145422048 is 840224541.

145422048 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×145422048² = 42295144089028608, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145422049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110611 + ... + 111917.

It is an arithmetic number, because the mean of its divisors is an integer number (4257540).

Almost surely, 2^145422048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145422048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204361920).

145422048 is an abundant number, since it is smaller than the sum of its proper divisors (263301792).

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

145422048 is a wasteful number, since it uses less digits than its factorization.

145422048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1400 (or 1392 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 30.

The square root of 145422048 is about 12059.1064345581. The cubic root of 145422048 is about 525.8680098880.

Adding to 145422048 its reverse (840224541), we get a palindrome (985646589).

The spelling of 145422048 in words is "one hundred forty-five million, four hundred twenty-two thousand, forty-eight".