144854020 has 24 divisors (see below), whose sum is σ = 304575768. Its totient is φ = 57868800.

The previous prime is 144854011. The next prime is 144854051. The reversal of 144854020 is 20458441.

It can be written as a sum of positive squares in 4 ways, for example, as 23677956 + 121176064 = 4866^2 + 11008^2 .

It is a super-2 number, since 2×144854020² = 41965374220320800, 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 144854020.

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, 13510 + ... + 21730.

It is an arithmetic number, because the mean of its divisors is an integer number (12690657).

Almost surely, 2^144854020 is an apocalyptic number.

144854020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144854020 is an abundant number, since it is smaller than the sum of its proper divisors (159721748).

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

144854020 is a wasteful number, since it uses less digits than its factorization.

144854020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9111 (or 9109 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 28.

The square root of 144854020 is about 12035.5315628351. The cubic root of 144854020 is about 525.1824248886.

The spelling of 144854020 in words is "one hundred forty-four million, eight hundred fifty-four thousand, twenty".