1655277313 has 2 divisors, whose sum is σ = 1655277314. Its totient is φ = 1655277312.

The previous prime is 1655277289. The next prime is 1655277329. The reversal of 1655277313 is 3137725561.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 955304464 + 699972849 = 30908^2 + 26457^2 .

It is an emirp because it is prime and its reverse (3137725561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1655277313 - 2²¹ = 1653180161 is a prime.

It is not a weakly prime, because it can be changed into another prime (1655277353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 827638656 + 827638657.

It is an arithmetic number, because the mean of its divisors is an integer number (827638657).

Almost surely, 2^1655277313 is an apocalyptic number.

It is an amenable number.

1655277313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1655277313 is an equidigital number, since it uses as much as digits as its factorization.

1655277313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 132300, while the sum is 40.

The square root of 1655277313 is about 40685.0993976910. The cubic root of 1655277313 is about 1182.9242117696.

The spelling of 1655277313 in words is "one billion, six hundred fifty-five million, two hundred seventy-seven thousand, three hundred thirteen".