144190901 has 4 divisors (see below), whose sum is σ = 146343072. Its totient is φ = 142038732.

The previous prime is 144190873. The next prime is 144190919. The reversal of 144190901 is 109091441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144190901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144190931) 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 3 ways as a sum of consecutive naturals, for example, 1075985 + ... + 1076118.

It is an arithmetic number, because the mean of its divisors is an integer number (36585768).

Almost surely, 2^144190901 is an apocalyptic number.

It is an amenable number.

144190901 is a deficient number, since it is larger than the sum of its proper divisors (2152171).

144190901 is an equidigital number, since it uses as much as digits as its factorization.

144190901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2152170.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 144190901 is about 12007.9515738531. The cubic root of 144190901 is about 524.3797979306.

The spelling of 144190901 in words is "one hundred forty-four million, one hundred ninety thousand, nine hundred one".