145224534 has 48 divisors (see below), whose sum is σ = 363868848. Its totient is φ = 38299968.

The previous prime is 145224533. The next prime is 145224589. The reversal of 145224534 is 435422541.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145224533) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15177 + ... + 22820.

It is an arithmetic number, because the mean of its divisors is an integer number (7580601).

Almost surely, 2^145224534 is an apocalyptic number.

145224534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

145224534 is an abundant number, since it is smaller than the sum of its proper divisors (218644314).

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

145224534 is a wasteful number, since it uses less digits than its factorization.

145224534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38029 (or 38022 counting only the distinct ones).

The product of its digits is 19200, while the sum is 30.

The square root of 145224534 is about 12050.9142391770. The cubic root of 145224534 is about 525.6298219030.

The spelling of 145224534 in words is "one hundred forty-five million, two hundred twenty-four thousand, five hundred thirty-four".