144353231 has 4 divisors (see below), whose sum is σ = 157476264. Its totient is φ = 131230200.

The previous prime is 144353219. The next prime is 144353233. The reversal of 144353231 is 132353441.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 144353231 - 2¹⁴ = 144336847 is a prime.

It is a super-2 number, since 2×144353231² = 41675710600278722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 144353231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144353233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6561500 + ... + 6561521.

It is an arithmetic number, because the mean of its divisors is an integer number (39369066).

Almost surely, 2^144353231 is an apocalyptic number.

144353231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

144353231 is a deficient number, since it is larger than the sum of its proper divisors (13123033).

144353231 is a wasteful number, since it uses less digits than its factorization.

144353231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13123032.

The product of its digits is 4320, while the sum is 26.

The square root of 144353231 is about 12014.7089436241. The cubic root of 144353231 is about 524.5765062488.

The spelling of 144353231 in words is "one hundred forty-four million, three hundred fifty-three thousand, two hundred thirty-one".