145545534 has 24 divisors (see below), whose sum is σ = 333899280. Its totient is φ = 45661248.

The previous prime is 145545509. The next prime is 145545581. The reversal of 145545534 is 435545541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 237514 + ... + 238125.

It is an arithmetic number, because the mean of its divisors is an integer number (13912470).

Almost surely, 2^145545534 is an apocalyptic number.

145545534 is an abundant number, since it is smaller than the sum of its proper divisors (188353746).

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

145545534 is a wasteful number, since it uses less digits than its factorization.

145545534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475664 (or 475661 counting only the distinct ones).

The product of its digits is 120000, while the sum is 36.

The square root of 145545534 is about 12064.2253791945. The cubic root of 145545534 is about 526.0168157626.

The spelling of 145545534 in words is "one hundred forty-five million, five hundred forty-five thousand, five hundred thirty-four".