145660280 has 16 divisors (see below), whose sum is σ = 327735720. Its totient is φ = 58264096.

The previous prime is 145660261. The next prime is 145660303. The reversal of 145660280 is 82066541.

145660280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1820714 + ... + 1820793.

Almost surely, 2^145660280 is an apocalyptic number.

145660280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145660280 is an abundant number, since it is smaller than the sum of its proper divisors (182075440).

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

145660280 is a wasteful number, since it uses less digits than its factorization.

145660280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3641518 (or 3641514 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 145660280 is about 12068.9800728976. The cubic root of 145660280 is about 526.1550141416.

The spelling of 145660280 in words is "one hundred forty-five million, six hundred sixty thousand, two hundred eighty".