1356146557 has 2 divisors, whose sum is σ = 1356146558. Its totient is φ = 1356146556.

The previous prime is 1356146551. The next prime is 1356146567. The reversal of 1356146557 is 7556416531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1276918756 + 79227801 = 35734^2 + 8901^2 .

It is a cyclic number.

It is not a de Polignac number, because 1356146557 - 2³ = 1356146549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1356146551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 678073278 + 678073279.

It is an arithmetic number, because the mean of its divisors is an integer number (678073279).

Almost surely, 2^1356146557 is an apocalyptic number.

It is an amenable number.

1356146557 is a deficient number, since it is larger than the sum of its proper divisors (1).

1356146557 is an equidigital number, since it uses as much as digits as its factorization.

1356146557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 378000, while the sum is 43.

The square root of 1356146557 is about 36825.8951961795. The cubic root of 1356146557 is about 1106.8842518152.

The spelling of 1356146557 in words is "one billion, three hundred fifty-six million, one hundred forty-six thousand, five hundred fifty-seven".