1198537 has 2 divisors, whose sum is σ = 1198538. Its totient is φ = 1198536.

The previous prime is 1198523. The next prime is 1198583. The reversal of 1198537 is 7358911.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 866761 + 331776 = 931^2 + 576^2 .

It is a cyclic number.

It is not a de Polignac number, because 1198537 - 2¹⁹ = 674249 is a prime.

It is not a weakly prime, because it can be changed into another prime (1198037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 599268 + 599269.

It is an arithmetic number, because the mean of its divisors is an integer number (599269).

2^1198537 is an apocalyptic number.

It is an amenable number.

1198537 is a deficient number, since it is larger than the sum of its proper divisors (1).

1198537 is an equidigital number, since it uses as much as digits as its factorization.

1198537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 34.

The square root of 1198537 is about 1094.7771462722. Note that the first 3 decimals coincide. The cubic root of 1198537 is about 106.2226540928. Note that the first 3 decimals are identical.

The spelling of 1198537 in words is "one million, one hundred ninety-eight thousand, five hundred thirty-seven".