144522477 has 12 divisors (see below), whose sum is σ = 227732544. Its totient is φ = 87589320.

The previous prime is 144522461. The next prime is 144522479. The reversal of 144522477 is 774225441.

It is not a de Polignac number, because 144522477 - 2⁴ = 144522461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144522479) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 729813 + ... + 730010.

It is an arithmetic number, because the mean of its divisors is an integer number (18977712).

Almost surely, 2^144522477 is an apocalyptic number.

It is an amenable number.

144522477 is a deficient number, since it is larger than the sum of its proper divisors (83210067).

144522477 is a wasteful number, since it uses less digits than its factorization.

144522477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459840 (or 1459837 counting only the distinct ones).

The product of its digits is 62720, while the sum is 36.

The square root of 144522477 is about 12021.7501637657. The cubic root of 144522477 is about 524.7814382753.

The spelling of 144522477 in words is "one hundred forty-four million, five hundred twenty-two thousand, four hundred seventy-seven".