145563864 has 96 divisors (see below), whose sum is σ = 392551920. Its totient is φ = 44957952.

The previous prime is 145563857. The next prime is 145563889. The reversal of 145563864 is 468365541.

It is a super-2 number, since 2×145563864² = 42377677005220992, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 459034 + ... + 459350.

Almost surely, 2^145563864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145563864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196275960).

145563864 is an abundant number, since it is smaller than the sum of its proper divisors (246988056).

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

145563864 is a wasteful number, since it uses less digits than its factorization.

145563864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417 (or 394 counting only the distinct ones).

The product of its digits is 345600, while the sum is 42.

The square root of 145563864 is about 12064.9850393608. The cubic root of 145563864 is about 526.0388970161.

The spelling of 145563864 in words is "one hundred forty-five million, five hundred sixty-three thousand, eight hundred sixty-four".