145143520 has 48 divisors (see below), whose sum is σ = 350215488. Its totient is φ = 56819200.

The previous prime is 145143469. The next prime is 145143571. The reversal of 145143520 is 25341541.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (145143469) and next prime (145143571).

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 7 ways as a sum of consecutive naturals, for example, 2131 + ... + 17170.

It is an arithmetic number, because the mean of its divisors is an integer number (7296156).

Almost surely, 2^145143520 is an apocalyptic number.

145143520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145143520 is an abundant number, since it is smaller than the sum of its proper divisors (205071968).

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

145143520 is a wasteful number, since it uses less digits than its factorization.

145143520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19363 (or 19355 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 145143520 is about 12047.5524485266. The cubic root of 145143520 is about 525.5320622612.

The spelling of 145143520 in words is "one hundred forty-five million, one hundred forty-three thousand, five hundred twenty".