145520124 has 12 divisors (see below), whose sum is σ = 339546984. Its totient is φ = 48506704.

The previous prime is 145520117. The next prime is 145520129. The reversal of 145520124 is 421025541.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×145520124² = 42352212977950752, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145520094 and 145520103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145520129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6063327 + ... + 6063350.

It is an arithmetic number, because the mean of its divisors is an integer number (28295582).

Almost surely, 2^145520124 is an apocalyptic number.

It is an amenable number.

145520124 is an abundant number, since it is smaller than the sum of its proper divisors (194026860).

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

145520124 is a wasteful number, since it uses less digits than its factorization.

145520124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12126684 (or 12126682 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 145520124 is about 12063.1722196112. The cubic root of 145520124 is about 525.9862025132.

Adding to 145520124 its reverse (421025541), we get a palindrome (566545665).

The spelling of 145520124 in words is "one hundred forty-five million, five hundred twenty thousand, one hundred twenty-four".