144145764 has 48 divisors (see below), whose sum is σ = 427100800. Its totient is φ = 41184288.

The previous prime is 144145751. The next prime is 144145787. The reversal of 144145764 is 467541441.

It is a happy number.

144145764 is a `hidden beast` number, since 144 + 1 + 457 + 64 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94579 + ... + 96090.

Almost surely, 2^144145764 is an apocalyptic number.

144145764 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

144145764 is an abundant number, since it is smaller than the sum of its proper divisors (282955036).

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

144145764 is a wasteful number, since it uses less digits than its factorization.

144145764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190689 (or 190681 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 144145764 is about 12006.0719638023. The cubic root of 144145764 is about 524.3250755661.

The spelling of 144145764 in words is "one hundred forty-four million, one hundred forty-five thousand, seven hundred sixty-four".