1837481 has 2 divisors, whose sum is σ = 1837482. Its totient is φ = 1837480.

The previous prime is 1837477. The next prime is 1837489. The reversal of 1837481 is 1847381.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1731856 + 105625 = 1316^2 + 325^2 .

It is an emirp because it is prime and its reverse (1847381) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1837481 - 2² = 1837477 is a prime.

It is a super-2 number, since 2×1837481² = 6752672850722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1837489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 918740 + 918741.

It is an arithmetic number, because the mean of its divisors is an integer number (918741).

2^1837481 is an apocalyptic number.

It is an amenable number.

1837481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1837481 is an equidigital number, since it uses as much as digits as its factorization.

1837481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376, while the sum is 32.

The square root of 1837481 is about 1355.5371628989. The cubic root of 1837481 is about 122.4825686706.

The spelling of 1837481 in words is "one million, eight hundred thirty-seven thousand, four hundred eighty-one".