145563812 has 12 divisors (see below), whose sum is σ = 258913116. Its totient is φ = 71588640.

The previous prime is 145563799. The next prime is 145563833. The reversal of 145563812 is 218365541.

It can be written as a sum of positive squares in 2 ways, for example, as 4096576 + 141467236 = 2024^2 + 11894^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298043 + ... + 298530.

It is an arithmetic number, because the mean of its divisors is an integer number (21576093).

Almost surely, 2^145563812 is an apocalyptic number.

It is an amenable number.

145563812 is a deficient number, since it is larger than the sum of its proper divisors (113349304).

145563812 is a wasteful number, since it uses less digits than its factorization.

145563812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596638 (or 596636 counting only the distinct ones).

The product of its digits is 28800, while the sum is 35.

The square root of 145563812 is about 12064.9828843642. The cubic root of 145563812 is about 526.0388343768.

The spelling of 145563812 in words is "one hundred forty-five million, five hundred sixty-three thousand, eight hundred twelve".