77148353 has 2 divisors, whose sum is σ = 77148354. Its totient is φ = 77148352.

The previous prime is 77148311. The next prime is 77148373. The reversal of 77148353 is 35384177.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57638464 + 19509889 = 7592^2 + 4417^2 .

It is an emirp because it is prime and its reverse (35384177) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77148353 - 2¹² = 77144257 is a prime.

It is a super-2 number, since 2×77148353² = 11903736741225218, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (77148373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38574176 + 38574177.

It is an arithmetic number, because the mean of its divisors is an integer number (38574177).

Almost surely, 2^77148353 is an apocalyptic number.

It is an amenable number.

77148353 is a deficient number, since it is larger than the sum of its proper divisors (1).

77148353 is an equidigital number, since it uses as much as digits as its factorization.

77148353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70560, while the sum is 38.

The square root of 77148353 is about 8783.4135163955. The cubic root of 77148353 is about 425.7051325568.

The spelling of 77148353 in words is "seventy-seven million, one hundred forty-eight thousand, three hundred fifty-three".