144868536 has 48 divisors (see below), whose sum is σ = 409415760. Its totient is φ = 46189440.

The previous prime is 144868517. The next prime is 144868547. The reversal of 144868536 is 635868441.

144868536 is a `hidden beast` number, since 14 + 48 + 68 + 536 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 144868491 and 144868500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42085 + ... + 45396.

It is an arithmetic number, because the mean of its divisors is an integer number (8529495).

Almost surely, 2^144868536 is an apocalyptic number.

It is an amenable number.

144868536 is an abundant number, since it is smaller than the sum of its proper divisors (264547224).

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

144868536 is a wasteful number, since it uses less digits than its factorization.

144868536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87516 (or 87509 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 144868536 is about 12036.1345954588. The cubic root of 144868536 is about 525.1999673621.

The spelling of 144868536 in words is "one hundred forty-four million, eight hundred sixty-eight thousand, five hundred thirty-six".