144691097 has 8 divisors (see below), whose sum is σ = 153893376. Its totient is φ = 135565632.

The previous prime is 144691081. The next prime is 144691103. The reversal of 144691097 is 790196441.

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 144691097 - 2⁴ = 144691081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144691067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15293 + ... + 22874.

It is an arithmetic number, because the mean of its divisors is an integer number (19236672).

Almost surely, 2^144691097 is an apocalyptic number.

144691097 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

144691097 is a deficient number, since it is larger than the sum of its proper divisors (9202279).

144691097 is a wasteful number, since it uses less digits than its factorization.

144691097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38407.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 144691097 is about 12028.7612412916. The cubic root of 144691097 is about 524.9854532629.

The spelling of 144691097 in words is "one hundred forty-four million, six hundred ninety-one thousand, ninety-seven".