145233432 has 32 divisors (see below), whose sum is σ = 403426800. Its totient is φ = 48411072.

The previous prime is 145233391. The next prime is 145233437. The reversal of 145233432 is 234332541.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 145233396 and 145233405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145233437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 335973 + ... + 336404.

Almost surely, 2^145233432 is an apocalyptic number.

145233432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145233432 is an abundant number, since it is smaller than the sum of its proper divisors (258193368).

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

145233432 is a wasteful number, since it uses less digits than its factorization.

145233432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672392 (or 672382 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 145233432 is about 12051.2834171303. The cubic root of 145233432 is about 525.6405569088.

Adding to 145233432 its reverse (234332541), we get a palindrome (379565973).

It can be divided in two parts, 14523 and 3432, that added together give a triangular number (17955 = T₁₈₉).

The spelling of 145233432 in words is "one hundred forty-five million, two hundred thirty-three thousand, four hundred thirty-two".