1351144477 has 2 divisors, whose sum is σ = 1351144478. Its totient is φ = 1351144476.

The previous prime is 1351144387. The next prime is 1351144493. The reversal of 1351144477 is 7744411531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1291252356 + 59892121 = 35934^2 + 7739^2 .

It is a cyclic number.

It is not a de Polignac number, because 1351144477 - 2¹⁹ = 1350620189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1351144877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 675572238 + 675572239.

It is an arithmetic number, because the mean of its divisors is an integer number (675572239).

Almost surely, 2^1351144477 is an apocalyptic number.

It is an amenable number.

1351144477 is a deficient number, since it is larger than the sum of its proper divisors (1).

1351144477 is an equidigital number, since it uses as much as digits as its factorization.

1351144477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47040, while the sum is 37.

The square root of 1351144477 is about 36757.9172016043. The cubic root of 1351144477 is about 1105.5216791040.

The spelling of 1351144477 in words is "one billion, three hundred fifty-one million, one hundred forty-four thousand, four hundred seventy-seven".