145631124 has 72 divisors (see below), whose sum is σ = 404389440. Its totient is φ = 43984512.

The previous prime is 145631119. The next prime is 145631183. The reversal of 145631124 is 421136541.

It is a happy number.

145631124 is a `hidden beast` number, since 1 + 4 + 5 + 631 + 1 + 24 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11104 + ... + 20360.

It is an arithmetic number, because the mean of its divisors is an integer number (5616520).

Almost surely, 2^145631124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145631124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202194720).

145631124 is an abundant number, since it is smaller than the sum of its proper divisors (258758316).

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

145631124 is a wasteful number, since it uses less digits than its factorization.

145631124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9309 (or 9304 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 145631124 is about 12067.7721224756. The cubic root of 145631124 is about 526.1199059678.

Adding to 145631124 its reverse (421136541), we get a palindrome (566767665).

The spelling of 145631124 in words is "one hundred forty-five million, six hundred thirty-one thousand, one hundred twenty-four".