1200158 has 8 divisors (see below), whose sum is σ = 1805328. Its totient is φ = 598384.

The previous prime is 1200139. The next prime is 1200161. The reversal of 1200158 is 8510021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 410 + ... + 1602.

It is an arithmetic number, because the mean of its divisors is an integer number (225666).

2^1200158 is an apocalyptic number.

1200158 is a deficient number, since it is larger than the sum of its proper divisors (605170).

1200158 is a wasteful number, since it uses less digits than its factorization.

1200158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1698.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 1200158 is about 1095.5172294400. The cubic root of 1200158 is about 106.2705206040.

Adding to 1200158 its reverse (8510021), we get a palindrome (9710179).

The spelling of 1200158 in words is "one million, two hundred thousand, one hundred fifty-eight".