1198755 has 24 divisors (see below), whose sum is σ = 2201472. Its totient is φ = 601344.

The previous prime is 1198751. The next prime is 1198793. The reversal of 1198755 is 5578911.

It is not a de Polignac number, because 1198755 - 2² = 1198751 is a prime.

1198755 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1198751) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19 + ... + 1548.

It is an arithmetic number, because the mean of its divisors is an integer number (91728).

2^1198755 is an apocalyptic number.

1198755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1198755 is a deficient number, since it is larger than the sum of its proper divisors (1002717).

1198755 is a wasteful number, since it uses less digits than its factorization.

1198755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1595 (or 1592 counting only the distinct ones).

The product of its digits is 12600, while the sum is 36.

The square root of 1198755 is about 1094.8767053874. The cubic root of 1198755 is about 106.2290939259.

It can be divided in two parts, 1198 and 755, that added together give a triangular number (1953 = T₆₂).

The spelling of 1198755 in words is "one million, one hundred ninety-eight thousand, seven hundred fifty-five".