1151398 has 4 divisors (see below), whose sum is σ = 1727100. Its totient is φ = 575698.

The previous prime is 1151389. The next prime is 1151399. The reversal of 1151398 is 8931511.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 287848 + ... + 287851.

It is an arithmetic number, because the mean of its divisors is an integer number (431775).

2^1151398 is an apocalyptic number.

1151398 is a deficient number, since it is larger than the sum of its proper divisors (575702).

1151398 is an equidigital number, since it uses as much as digits as its factorization.

1151398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575701.

The product of its digits is 1080, while the sum is 28.

The square root of 1151398 is about 1073.0321523608. The cubic root of 1151398 is about 104.8113923284.

It can be divided in two parts, 11513 and 98, that added together give a palindrome (11611).

The spelling of 1151398 in words is "one million, one hundred fifty-one thousand, three hundred ninety-eight".