77148753 has 24 divisors (see below), whose sum is σ = 113963616. Its totient is φ = 46420440.

The previous prime is 77148727. The next prime is 77148767. The reversal of 77148753 is 35784177.

It is a happy number.

It is not a de Polignac number, because 77148753 - 2⁶ = 77148689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77148053) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 554958 + ... + 555096.

It is an arithmetic number, because the mean of its divisors is an integer number (4748484).

Almost surely, 2^77148753 is an apocalyptic number.

It is an amenable number.

77148753 is a deficient number, since it is larger than the sum of its proper divisors (36814863).

77148753 is an equidigital number, since it uses as much as digits as its factorization.

77148753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314 (or 153 counting only the distinct ones).

The product of its digits is 164640, while the sum is 42.

The square root of 77148753 is about 8783.4362865566. The cubic root of 77148753 is about 425.7058682897.

The spelling of 77148753 in words is "seventy-seven million, one hundred forty-eight thousand, seven hundred fifty-three".