1237142 has 4 divisors (see below), whose sum is σ = 1855716. Its totient is φ = 618570.

The previous prime is 1237139. The next prime is 1237151. The reversal of 1237142 is 2417321.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 309284 + ... + 309287.

It is an arithmetic number, because the mean of its divisors is an integer number (463929).

2^1237142 is an apocalyptic number.

1237142 is a deficient number, since it is larger than the sum of its proper divisors (618574).

1237142 is an equidigital number, since it uses as much as digits as its factorization.

1237142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618573.

The product of its digits is 336, while the sum is 20.

The square root of 1237142 is about 1112.2688523914. The cubic root of 1237142 is about 107.3511044822.

The spelling of 1237142 in words is "one million, two hundred thirty-seven thousand, one hundred forty-two".