77300144 has 20 divisors (see below), whose sum is σ = 150266424. Its totient is φ = 38521728.

The previous prime is 77300137. The next prime is 77300159. The reversal of 77300144 is 44100377.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2957 + ... + 12780.

Almost surely, 2^77300144 is an apocalyptic number.

It is an amenable number.

77300144 is a deficient number, since it is larger than the sum of its proper divisors (72966280).

77300144 is a wasteful number, since it uses less digits than its factorization.

77300144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16052 (or 16046 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 77300144 is about 8792.0500453535. The cubic root of 77300144 is about 425.9841442371.

The spelling of 77300144 in words is "seventy-seven million, three hundred thousand, one hundred forty-four".