1395611149 has 2 divisors, whose sum is σ = 1395611150. Its totient is φ = 1395611148.

The previous prime is 1395611143. The next prime is 1395611183. The reversal of 1395611149 is 9411165931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1393528900 + 2082249 = 37330^2 + 1443^2 .

It is a cyclic number.

It is not a de Polignac number, because 1395611149 - 2¹⁷ = 1395480077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1395611143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 697805574 + 697805575.

It is an arithmetic number, because the mean of its divisors is an integer number (697805575).

Almost surely, 2^1395611149 is an apocalyptic number.

It is an amenable number.

1395611149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1395611149 is an equidigital number, since it uses as much as digits as its factorization.

1395611149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29160, while the sum is 40.

The square root of 1395611149 is about 37357.8793429177. The cubic root of 1395611149 is about 1117.5187281385.

The spelling of 1395611149 in words is "one billion, three hundred ninety-five million, six hundred eleven thousand, one hundred forty-nine".