145231632 has 120 divisors (see below), whose sum is σ = 500287424. Its totient is φ = 38299392.

The previous prime is 145231631. The next prime is 145231633. The reversal of 145231632 is 236132541.

145231632 is a `hidden beast` number, since 1 + 4 + 5 + 23 + 1 + 632 = 666.

It is an interprime number because it is at equal distance from previous prime (145231631) and next prime (145231633).

It is a junction number, because it is equal to n+sod(n) for n = 145231596 and 145231605.

It is not an unprimeable number, because it can be changed into a prime (145231631) 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, 7563 + ... + 18645.

Almost surely, 2^145231632 is an apocalyptic number.

145231632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145231632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250143712).

145231632 is an abundant number, since it is smaller than the sum of its proper divisors (355055792).

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

145231632 is a wasteful number, since it uses less digits than its factorization.

145231632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11117 (or 11108 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 145231632 is about 12051.2087360563. The cubic root of 145231632 is about 525.6383853314.

Subtracting 145231632 from its reverse (236132541), we obtain a palindrome (90900909).

The spelling of 145231632 in words is "one hundred forty-five million, two hundred thirty-one thousand, six hundred thirty-two".