1364555149 has 2 divisors, whose sum is σ = 1364555150. Its totient is φ = 1364555148.

The previous prime is 1364555141. The next prime is 1364555173. The reversal of 1364555149 is 9415554631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 972317124 + 392238025 = 31182^2 + 19805^2 .

It is a cyclic number.

It is not a de Polignac number, because 1364555149 - 2³ = 1364555141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1364555141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 682277574 + 682277575.

It is an arithmetic number, because the mean of its divisors is an integer number (682277575).

Almost surely, 2^1364555149 is an apocalyptic number.

It is an amenable number.

1364555149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1364555149 is an equidigital number, since it uses as much as digits as its factorization.

1364555149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 324000, while the sum is 43.

The square root of 1364555149 is about 36939.8856116258. The cubic root of 1364555149 is about 1109.1672321551.

The spelling of 1364555149 in words is "one billion, three hundred sixty-four million, five hundred fifty-five thousand, one hundred forty-nine".