144749699 has 4 divisors (see below), whose sum is σ = 144897936. Its totient is φ = 144601464.

The previous prime is 144749687. The next prime is 144749749. The reversal of 144749699 is 996947441.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 144749699 - 2⁸ = 144749443 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144749699.

It is not an unprimeable number, because it can be changed into a prime (144749609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72644 + ... + 74609.

It is an arithmetic number, because the mean of its divisors is an integer number (36224484).

Almost surely, 2^144749699 is an apocalyptic number.

144749699 is a deficient number, since it is larger than the sum of its proper divisors (148237).

144749699 is an equidigital number, since it uses as much as digits as its factorization.

144749699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148236.

The product of its digits is 1959552, while the sum is 53.

The square root of 144749699 is about 12031.1969063764. The cubic root of 144749699 is about 525.0563192794.

The spelling of 144749699 in words is "one hundred forty-four million, seven hundred forty-nine thousand, six hundred ninety-nine".