144697486 has 4 divisors (see below), whose sum is σ = 217046232. Its totient is φ = 72348742.

The previous prime is 144697481. The next prime is 144697499. The reversal of 144697486 is 684796441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 684796441 = 7 ⋅97828063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144697481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36174370 + ... + 36174373.

It is an arithmetic number, because the mean of its divisors is an integer number (54261558).

Almost surely, 2^144697486 is an apocalyptic number.

144697486 is a deficient number, since it is larger than the sum of its proper divisors (72348746).

144697486 is an equidigital number, since it uses as much as digits as its factorization.

144697486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72348745.

The product of its digits is 1161216, while the sum is 49.

The square root of 144697486 is about 12029.0268101788. The cubic root of 144697486 is about 524.9931802591.

The spelling of 144697486 in words is "one hundred forty-four million, six hundred ninety-seven thousand, four hundred eighty-six".