264155477 has 2 divisors, whose sum is σ = 264155478. Its totient is φ = 264155476.

The previous prime is 264155447. The next prime is 264155531. The reversal of 264155477 is 774551462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132388036 + 131767441 = 11506^2 + 11479^2 .

It is a cyclic number.

It is not a de Polignac number, because 264155477 - 2⁶ = 264155413 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264155417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132077738 + 132077739.

It is an arithmetic number, because the mean of its divisors is an integer number (132077739).

Almost surely, 2^264155477 is an apocalyptic number.

It is an amenable number.

264155477 is a deficient number, since it is larger than the sum of its proper divisors (1).

264155477 is an equidigital number, since it uses as much as digits as its factorization.

264155477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 235200, while the sum is 41.

The square root of 264155477 is about 16252.8605789873. The cubic root of 264155477 is about 641.6327750769.

The spelling of 264155477 in words is "two hundred sixty-four million, one hundred fifty-five thousand, four hundred seventy-seven".