144402467 has 4 divisors (see below), whose sum is σ = 157529976. Its totient is φ = 131274960.

The previous prime is 144402443. The next prime is 144402481. The reversal of 144402467 is 764204441.

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 144402467 - 2¹⁰ = 144401443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144402667) 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, 6563738 + ... + 6563759.

It is an arithmetic number, because the mean of its divisors is an integer number (39382494).

Almost surely, 2^144402467 is an apocalyptic number.

144402467 is a deficient number, since it is larger than the sum of its proper divisors (13127509).

144402467 is a wasteful number, since it uses less digits than its factorization.

144402467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13127508.

The product of its (nonzero) digits is 21504, while the sum is 32.

The square root of 144402467 is about 12016.7577573986. The cubic root of 144402467 is about 524.6361403209.

The spelling of 144402467 in words is "one hundred forty-four million, four hundred two thousand, four hundred sixty-seven".