144651040 has 24 divisors (see below), whose sum is σ = 341738460. Its totient is φ = 57860352.

The previous prime is 144651029. The next prime is 144651041. The reversal of 144651040 is 40156441.

It can be written as a sum of positive squares in 2 ways, for example, as 121264144 + 23386896 = 11012^2 + 4836^2 .

It is a junction number, because it is equal to n+sod(n) for n = 144650996 and 144651014.

It is not an unprimeable number, because it can be changed into a prime (144651041) 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, 451875 + ... + 452194.

Almost surely, 2^144651040 is an apocalyptic number.

144651040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144651040 is an abundant number, since it is smaller than the sum of its proper divisors (197087420).

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

144651040 is an equidigital number, since it uses as much as digits as its factorization.

144651040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904084 (or 904076 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 144651040 is about 12027.0960751131. The cubic root of 144651040 is about 524.9370022670.

The spelling of 144651040 in words is "one hundred forty-four million, six hundred fifty-one thousand, forty".