144870436 has 6 divisors (see below), whose sum is σ = 253523270. Its totient is φ = 72435216.

The previous prime is 144870433. The next prime is 144870443. The reversal of 144870436 is 634078441.

It can be written as a sum of positive squares in only one way, i.e., 137030436 + 7840000 = 11706^2 + 2800^2 .

It is a junction number, because it is equal to n+sod(n) for n = 144870395 and 144870404.

It is not an unprimeable number, because it can be changed into a prime (144870431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18108801 + ... + 18108808.

Almost surely, 2^144870436 is an apocalyptic number.

It is an amenable number.

144870436 is a deficient number, since it is larger than the sum of its proper divisors (108652834).

144870436 is a wasteful number, since it uses less digits than its factorization.

144870436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36217613 (or 36217611 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 144870436 is about 12036.2135241944. The cubic root of 144870436 is about 525.2022634107.

The spelling of 144870436 in words is "one hundred forty-four million, eight hundred seventy thousand, four hundred thirty-six".