145242032 has 80 divisors (see below), whose sum is σ = 314979840. Its totient is φ = 64455936.

The previous prime is 145242029. The next prime is 145242043. The reversal of 145242032 is 230242541.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 145241989 and 145242007.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 811319 + ... + 811497.

It is an arithmetic number, because the mean of its divisors is an integer number (3937248).

Almost surely, 2^145242032 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 145242032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157489920).

145242032 is an abundant number, since it is smaller than the sum of its proper divisors (169737808).

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

145242032 is a wasteful number, since it uses less digits than its factorization.

145242032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330 (or 324 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 145242032 is about 12051.6402203186. The cubic root of 145242032 is about 525.6509319753.

Adding to 145242032 its reverse (230242541), we get a palindrome (375484573).

The spelling of 145242032 in words is "one hundred forty-five million, two hundred forty-two thousand, thirty-two".