145369280 has 168 divisors, whose sum is σ = 411406848. Its totient is φ = 48771072.

The previous prime is 145369277. The next prime is 145369291. The reversal of 145369280 is 82963541.

It is a happy number.

It is a super-2 number, since 2×145369280² = 42264455135436800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1144577 + ... + 1144703.

Almost surely, 2^145369280 is an apocalyptic number.

145369280 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 145369280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205703424).

145369280 is an abundant number, since it is smaller than the sum of its proper divisors (266037568).

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

145369280 is a wasteful number, since it uses less digits than its factorization.

145369280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 145369280 is about 12056.9183459124. The cubic root of 145369280 is about 525.8043965168.

The spelling of 145369280 in words is "one hundred forty-five million, three hundred sixty-nine thousand, two hundred eighty".