144861236 has 24 divisors (see below), whose sum is σ = 277089120. Its totient is φ = 65859552.

The previous prime is 144861221. The next prime is 144861247. The reversal of 144861236 is 632168441.

It is a junction number, because it is equal to n+sod(n) for n = 144861196 and 144861205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17306 + ... + 24273.

It is an arithmetic number, because the mean of its divisors is an integer number (11545380).

Almost surely, 2^144861236 is an apocalyptic number.

It is an amenable number.

144861236 is a deficient number, since it is larger than the sum of its proper divisors (132227884).

144861236 is a wasteful number, since it uses less digits than its factorization.

144861236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41663 (or 41661 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 144861236 is about 12035.8313381336. The cubic root of 144861236 is about 525.1911455152.

The spelling of 144861236 in words is "one hundred forty-four million, eight hundred sixty-one thousand, two hundred thirty-six".