144329867 has 4 divisors (see below), whose sum is σ = 157450776. Its totient is φ = 131208960.

The previous prime is 144329863. The next prime is 144329873. The reversal of 144329867 is 768923441.

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 144329867 - 2² = 144329863 is a prime.

It is a super-2 number, since 2×144329867² = 41662221016475378, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144329863) 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, 6560438 + ... + 6560459.

It is an arithmetic number, because the mean of its divisors is an integer number (39362694).

Almost surely, 2^144329867 is an apocalyptic number.

144329867 is a deficient number, since it is larger than the sum of its proper divisors (13120909).

144329867 is a wasteful number, since it uses less digits than its factorization.

144329867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13120908.

The product of its digits is 290304, while the sum is 44.

The square root of 144329867 is about 12013.7365960803. The cubic root of 144329867 is about 524.5482032989.

The spelling of 144329867 in words is "one hundred forty-four million, three hundred twenty-nine thousand, eight hundred sixty-seven".