145143570 has 128 divisors (see below), whose sum is σ = 427327488. Its totient is φ = 31046400.

The previous prime is 145143469. The next prime is 145143571. The reversal of 145143570 is 75341541.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (145143571) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 97935 + ... + 99405.

It is an arithmetic number, because the mean of its divisors is an integer number (3338496).

Almost surely, 2^145143570 is an apocalyptic number.

145143570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 145143570, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213663744).

145143570 is an abundant number, since it is smaller than the sum of its proper divisors (282183918).

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

145143570 is a wasteful number, since it uses less digits than its factorization.

145143570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1528.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 145143570 is about 12047.5545236367. The cubic root of 145143570 is about 525.5321226075.

The spelling of 145143570 in words is "one hundred forty-five million, one hundred forty-three thousand, five hundred seventy".