144120091 has 8 divisors (see below), whose sum is σ = 147102480. Its totient is φ = 141147552.

The previous prime is 144120089. The next prime is 144120157. The reversal of 144120091 is 190021441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144120091 - 2¹ = 144120089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144120061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31965 + ... + 36193.

It is an arithmetic number, because the mean of its divisors is an integer number (18387810).

Almost surely, 2^144120091 is an apocalyptic number.

144120091 is a deficient number, since it is larger than the sum of its proper divisors (2982389).

144120091 is an equidigital number, since it uses as much as digits as its factorization.

144120091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4925.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 144120091 is about 12005.0027488543. The cubic root of 144120091 is about 524.2939455106.

The spelling of 144120091 in words is "one hundred forty-four million, one hundred twenty thousand, ninety-one".