73127144 has 8 divisors (see below), whose sum is σ = 137113410. Its totient is φ = 36563568.

The previous prime is 73127107. The next prime is 73127147. The reversal of 73127144 is 44172137.

It can be written as a sum of positive squares in only one way, i.e., 69923044 + 3204100 = 8362^2 + 1790^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (73127147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4570439 + ... + 4570454.

Almost surely, 2^73127144 is an apocalyptic number.

It is an amenable number.

73127144 is a deficient number, since it is larger than the sum of its proper divisors (63986266).

73127144 is a wasteful number, since it uses less digits than its factorization.

73127144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9140899 (or 9140895 counting only the distinct ones).

The product of its digits is 4704, while the sum is 29.

The square root of 73127144 is about 8551.4410481509. The cubic root of 73127144 is about 418.1764172184.

The spelling of 73127144 in words is "seventy-three million, one hundred twenty-seven thousand, one hundred forty-four".