145492580 has 12 divisors (see below), whose sum is σ = 305534460. Its totient is φ = 58197024.

The previous prime is 145492573. The next prime is 145492603. The reversal of 145492580 is 85294541.

It can be written as a sum of positive squares in 2 ways, for example, as 25020004 + 120472576 = 5002^2 + 10976^2 .

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, 3637295 + ... + 3637334.

It is an arithmetic number, because the mean of its divisors is an integer number (25461205).

Almost surely, 2^145492580 is an apocalyptic number.

145492580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145492580 is an abundant number, since it is smaller than the sum of its proper divisors (160041880).

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

145492580 is a wasteful number, since it uses less digits than its factorization.

145492580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7274638 (or 7274636 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 38.

The square root of 145492580 is about 12062.0305089981. The cubic root of 145492580 is about 525.9530142554.

The spelling of 145492580 in words is "one hundred forty-five million, four hundred ninety-two thousand, five hundred eighty".