145428132 has 24 divisors (see below), whose sum is σ = 359293536. Its totient is φ = 45624448.

The previous prime is 145428121. The next prime is 145428137. The reversal of 145428132 is 231824541.

It is a super-2 number, since 2×145428132² = 42298683154018848, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145428132.

It is not an unprimeable number, because it can be changed into a prime (145428137) 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, 356238 + ... + 356645.

It is an arithmetic number, because the mean of its divisors is an integer number (14970564).

Almost surely, 2^145428132 is an apocalyptic number.

145428132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145428132 is an abundant number, since it is smaller than the sum of its proper divisors (213865404).

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

145428132 is a wasteful number, since it uses less digits than its factorization.

145428132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712907 (or 712905 counting only the distinct ones).

The product of its digits is 7680, while the sum is 30.

The square root of 145428132 is about 12059.3586894163. The cubic root of 145428132 is about 525.8753433390.

The spelling of 145428132 in words is "one hundred forty-five million, four hundred twenty-eight thousand, one hundred thirty-two".