1357198 has 4 divisors (see below), whose sum is σ = 2035800. Its totient is φ = 678598.

The previous prime is 1357193. The next prime is 1357201. The reversal of 1357198 is 8917531.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8917531 = 7 ⋅1273933.

It is a super-2 number, since 2×1357198² = 3683972822408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1357193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339298 + ... + 339301.

It is an arithmetic number, because the mean of its divisors is an integer number (508950).

2^1357198 is an apocalyptic number.

1357198 is a deficient number, since it is larger than the sum of its proper divisors (678602).

1357198 is an equidigital number, since it uses as much as digits as its factorization.

1357198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678601.

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

The square root of 1357198 is about 1164.9884119595. The cubic root of 1357198 is about 110.7170239846.

The spelling of 1357198 in words is "one million, three hundred fifty-seven thousand, one hundred ninety-eight".