1142207 has 4 divisors (see below), whose sum is σ = 1246056. Its totient is φ = 1038360.

The previous prime is 1142201. The next prime is 1142233. The reversal of 1142207 is 7022411.

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

It is a cyclic number.

It is not a de Polignac number, because 1142207 - 2⁴ = 1142191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51908 + ... + 51929.

It is an arithmetic number, because the mean of its divisors is an integer number (311514).

2^1142207 is an apocalyptic number.

1142207 is a deficient number, since it is larger than the sum of its proper divisors (103849).

1142207 is a wasteful number, since it uses less digits than its factorization.

1142207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103848.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 1142207 is about 1068.7408479140. The cubic root of 1142207 is about 104.5317623587.

Adding to 1142207 its reverse (7022411), we get a palindrome (8164618).

The spelling of 1142207 in words is "one million, one hundred forty-two thousand, two hundred seven".