145032540 has 48 divisors (see below), whose sum is σ = 410997888. Its totient is φ = 38208064.

The previous prime is 145032533. The next prime is 145032571. The reversal of 145032540 is 45230541.

It is a self number, because there is not a number n which added to its sum of digits gives 145032540.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9582 + ... + 19541.

It is an arithmetic number, because the mean of its divisors is an integer number (8562456).

Almost surely, 2^145032540 is an apocalyptic number.

145032540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145032540 is an abundant number, since it is smaller than the sum of its proper divisors (265965348).

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

145032540 is a wasteful number, since it uses less digits than its factorization.

145032540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29218 (or 29216 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 145032540 is about 12042.9456529538. The cubic root of 145032540 is about 525.3980835626.

The spelling of 145032540 in words is "one hundred forty-five million, thirty-two thousand, five hundred forty".