1274779133 has 2 divisors, whose sum is σ = 1274779134. Its totient is φ = 1274779132.

The previous prime is 1274779127. The next prime is 1274779139. The reversal of 1274779133 is 3319774721.

It is a balanced prime because it is at equal distance from previous prime (1274779127) and next prime (1274779139).

It can be written as a sum of positive squares in only one way, i.e., 1141561369 + 133217764 = 33787^2 + 11542^2 .

It is a cyclic number.

It is not a de Polignac number, because 1274779133 - 2⁶ = 1274779069 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1274779139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 637389566 + 637389567.

It is an arithmetic number, because the mean of its divisors is an integer number (637389567).

Almost surely, 2^1274779133 is an apocalyptic number.

It is an amenable number.

1274779133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1274779133 is an equidigital number, since it uses as much as digits as its factorization.

1274779133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 222264, while the sum is 44.

The square root of 1274779133 is about 35704.0492521507. The cubic root of 1274779133 is about 1084.2888252968.

The spelling of 1274779133 in words is "one billion, two hundred seventy-four million, seven hundred seventy-nine thousand, one hundred thirty-three".