146779112257 has 2 divisors, whose sum is σ = 146779112258. Its totient is φ = 146779112256.

The previous prime is 146779112219. The next prime is 146779112279. The reversal of 146779112257 is 752211977641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144524666896 + 2254445361 = 380164^2 + 47481^2 .

It is a cyclic number.

It is not a de Polignac number, because 146779112257 - 2³⁵ = 112419373889 is a prime.

It is not a weakly prime, because it can be changed into another prime (146779112287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73389556128 + 73389556129.

It is an arithmetic number, because the mean of its divisors is an integer number (73389556129).

Almost surely, 2^146779112257 is an apocalyptic number.

It is an amenable number.

146779112257 is a deficient number, since it is larger than the sum of its proper divisors (1).

146779112257 is an equidigital number, since it uses as much as digits as its factorization.

146779112257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1481760, while the sum is 52.

The spelling of 146779112257 in words is "one hundred forty-six billion, seven hundred seventy-nine million, one hundred twelve thousand, two hundred fifty-seven".