1356644101 has 2 divisors, whose sum is σ = 1356644102. Its totient is φ = 1356644100.

The previous prime is 1356644083. The next prime is 1356644111. The reversal of 1356644101 is 1014466531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 965593476 + 391050625 = 31074^2 + 19775^2 .

It is a cyclic number.

It is not a de Polignac number, because 1356644101 - 2⁷ = 1356643973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1356644111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 678322050 + 678322051.

It is an arithmetic number, because the mean of its divisors is an integer number (678322051).

Almost surely, 2^1356644101 is an apocalyptic number.

It is an amenable number.

1356644101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1356644101 is an equidigital number, since it uses as much as digits as its factorization.

1356644101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 1356644101 is about 36832.6499318200. The cubic root of 1356644101 is about 1107.0196000879.

The spelling of 1356644101 in words is "one billion, three hundred fifty-six million, six hundred forty-four thousand, one hundred one".