145569424 has 160 divisors (see below), whose sum is σ = 387475200. Its totient is φ = 51148800.

The previous prime is 145569421. The next prime is 145569451. The reversal of 145569424 is 424965541.

It is not an unprimeable number, because it can be changed into a prime (145569421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 976902 + ... + 977050.

It is an arithmetic number, because the mean of its divisors is an integer number (2421720).

Almost surely, 2^145569424 is an apocalyptic number.

145569424 is a gapful number since it is divisible by the number (14) 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 145569424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193737600).

145569424 is an abundant number, since it is smaller than the sum of its proper divisors (241905776).

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

145569424 is a wasteful number, since it uses less digits than its factorization.

145569424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249 (or 243 counting only the distinct ones).

The product of its digits is 172800, while the sum is 40.

The square root of 145569424 is about 12065.2154560124. The cubic root of 145569424 is about 526.0455945094.

The spelling of 145569424 in words is "one hundred forty-five million, five hundred sixty-nine thousand, four hundred twenty-four".