1137321 has 20 divisors (see below), whose sum is σ = 1790800. Its totient is φ = 717336.

The previous prime is 1137313. The next prime is 1137329. The reversal of 1137321 is 1237311.

It is an interprime number because it is at equal distance from previous prime (1137313) and next prime (1137329).

It is not a de Polignac number, because 1137321 - 2³ = 1137313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1137294 and 1137303.

It is not an unprimeable number, because it can be changed into a prime (1137329) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1170 + ... + 1908.

It is an arithmetic number, because the mean of its divisors is an integer number (89540).

2^1137321 is an apocalyptic number.

It is an amenable number.

1137321 is a deficient number, since it is larger than the sum of its proper divisors (653479).

1137321 is an equidigital number, since it uses as much as digits as its factorization.

1137321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770 (or 761 counting only the distinct ones).

The product of its digits is 126, while the sum is 18.

The square root of 1137321 is about 1066.4525305891. The cubic root of 1137321 is about 104.3824980570.

The spelling of 1137321 in words is "one million, one hundred thirty-seven thousand, three hundred twenty-one".