145123488 has 84 divisors (see below), whose sum is σ = 428440698. Its totient is φ = 48366720.

The previous prime is 145123471. The next prime is 145123499. The reversal of 145123488 is 884321541.

It can be written as a sum of positive squares in only one way, i.e., 143712144 + 1411344 = 11988^2 + 1188^2 .

It is a super-2 number, since 2×145123488² = 42121653538572288, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 20218 + ... + 26438.

Almost surely, 2^145123488 is an apocalyptic number.

145123488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145123488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214220349).

145123488 is an abundant number, since it is smaller than the sum of its proper divisors (283317210).

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

145123488 is an frugal number, since it uses more digits than its factorization.

145123488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6249 (or 6226 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 145123488 is about 12046.7210476544. The cubic root of 145123488 is about 525.5078840257.

The spelling of 145123488 in words is "one hundred forty-five million, one hundred twenty-three thousand, four hundred eighty-eight".