1137121 has 8 divisors (see below), whose sum is σ = 1186664. Its totient is φ = 1088640.

The previous prime is 1137109. The next prime is 1137137. The reversal of 1137121 is 1217311.

It can be written as a sum of positive squares in 4 ways, for example, as 96721 + 1040400 = 311^2 + 1020^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1137121 - 2⁹ = 1136609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1137095 and 1137104.

It is not an unprimeable number, because it can be changed into a prime (1137161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2491 + ... + 2911.

It is an arithmetic number, because the mean of its divisors is an integer number (148333).

2^1137121 is an apocalyptic number.

It is an amenable number.

1137121 is a deficient number, since it is larger than the sum of its proper divisors (49543).

1137121 is an equidigital number, since it uses as much as digits as its factorization.

1137121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531.

The product of its digits is 42, while the sum is 16.

The square root of 1137121 is about 1066.3587576421. The cubic root of 1137121 is about 104.3763790799.

The spelling of 1137121 in words is "one million, one hundred thirty-seven thousand, one hundred twenty-one".