146318447477 has 2 divisors, whose sum is σ = 146318447478. Its totient is φ = 146318447476.

The previous prime is 146318447459. The next prime is 146318447501. The reversal of 146318447477 is 774744813641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121577045041 + 24741402436 = 348679^2 + 157294^2 .

It is a cyclic number.

It is not a de Polignac number, because 146318447477 - 2¹⁰ = 146318446453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146318447417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73159223738 + 73159223739.

It is an arithmetic number, because the mean of its divisors is an integer number (73159223739).

Almost surely, 2^146318447477 is an apocalyptic number.

It is an amenable number.

146318447477 is a deficient number, since it is larger than the sum of its proper divisors (1).

146318447477 is an equidigital number, since it uses as much as digits as its factorization.

146318447477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12644352, while the sum is 56.

The spelling of 146318447477 in words is "one hundred forty-six billion, three hundred eighteen million, four hundred forty-seven thousand, four hundred seventy-seven".