145411280 has 80 divisors (see below), whose sum is σ = 390284544. Its totient is φ = 49351680.

The previous prime is 145411261. The next prime is 145411289. The reversal of 145411280 is 82114541.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×145411280² = 42288880702476800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145411289) 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, 56420 + ... + 58940.

Almost surely, 2^145411280 is an apocalyptic number.

145411280 is a gapful number since it is divisible by the number (10) 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 145411280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195142272).

145411280 is an abundant number, since it is smaller than the sum of its proper divisors (244873264).

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

145411280 is a wasteful number, since it uses less digits than its factorization.

145411280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2644 (or 2638 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 145411280 is about 12058.6599587185. The cubic root of 145411280 is about 525.8550299982.

The spelling of 145411280 in words is "one hundred forty-five million, four hundred eleven thousand, two hundred eighty".