145563400 has 24 divisors (see below), whose sum is σ = 338435370. Its totient is φ = 58225280.

The previous prime is 145563391. The next prime is 145563403. The reversal of 145563400 is 4365541.

It can be written as a sum of positive squares in 3 ways, for example, as 123076836 + 22486564 = 11094^2 + 4742^2 .

It is not an unprimeable number, because it can be changed into a prime (145563403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 363709 + ... + 364108.

Almost surely, 2^145563400 is an apocalyptic number.

145563400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145563400 is an abundant number, since it is smaller than the sum of its proper divisors (192871970).

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

145563400 is a wasteful number, since it uses less digits than its factorization.

145563400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727833 (or 727824 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 145563400 is about 12064.9658101463. The cubic root of 145563400 is about 526.0383380809.

It can be divided in two parts, 14556 and 3400, that added together give a square (17956 = 134²).

The spelling of 145563400 in words is "one hundred forty-five million, five hundred sixty-three thousand, four hundred".