1137441409 has 4 divisors (see below), whose sum is σ = 1224936916. Its totient is φ = 1049945904.

The previous prime is 1137441377. The next prime is 1137441421. The reversal of 1137441409 is 9041447311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9041447311 = 13 ⋅695495947.

It can be written as a sum of positive squares in 2 ways, for example, as 506025025 + 631416384 = 22495^2 + 25128^2 .

It is a cyclic number.

It is not a de Polignac number, because 1137441409 - 2⁵ = 1137441377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1137441439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43747734 + ... + 43747759.

It is an arithmetic number, because the mean of its divisors is an integer number (306234229).

Almost surely, 2^1137441409 is an apocalyptic number.

It is an amenable number.

1137441409 is a deficient number, since it is larger than the sum of its proper divisors (87495507).

1137441409 is an equidigital number, since it uses as much as digits as its factorization.

1137441409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87495506.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 1137441409 is about 33725.9752861203. The cubic root of 1137441409 is about 1043.8618161059.

The spelling of 1137441409 in words is "one billion, one hundred thirty-seven million, four hundred forty-one thousand, four hundred nine".