144429461 has 4 divisors (see below), whose sum is σ = 157559424. Its totient is φ = 131299500.

The previous prime is 144429457. The next prime is 144429473. The reversal of 144429461 is 164924441.

144429461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 144429461 - 2² = 144429457 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144429401) 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, 6564965 + ... + 6564986.

It is an arithmetic number, because the mean of its divisors is an integer number (39389856).

Almost surely, 2^144429461 is an apocalyptic number.

144429461 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

144429461 is a deficient number, since it is larger than the sum of its proper divisors (13129963).

144429461 is a wasteful number, since it uses less digits than its factorization.

144429461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13129962.

The product of its digits is 27648, while the sum is 35.

The square root of 144429461 is about 12017.8808864125. The cubic root of 144429461 is about 524.6688293875.

The spelling of 144429461 in words is "one hundred forty-four million, four hundred twenty-nine thousand, four hundred sixty-one".