1361411573 has 2 divisors, whose sum is σ = 1361411574. Its totient is φ = 1361411572.

The previous prime is 1361411543. The next prime is 1361411599. The reversal of 1361411573 is 3751141631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 758561764 + 602849809 = 27542^2 + 24553^2 .

It is a cyclic number.

It is not a de Polignac number, because 1361411573 - 2⁶ = 1361411509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1361411533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680705786 + 680705787.

It is an arithmetic number, because the mean of its divisors is an integer number (680705787).

Almost surely, 2^1361411573 is an apocalyptic number.

It is an amenable number.

1361411573 is a deficient number, since it is larger than the sum of its proper divisors (1).

1361411573 is an equidigital number, since it uses as much as digits as its factorization.

1361411573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560, while the sum is 32.

The square root of 1361411573 is about 36897.3111892994. The cubic root of 1361411573 is about 1108.3148341056.

The spelling of 1361411573 in words is "one billion, three hundred sixty-one million, four hundred eleven thousand, five hundred seventy-three".