1158422 has 8 divisors (see below), whose sum is σ = 1742256. Its totient is φ = 577672.

The previous prime is 1158419. The next prime is 1158427. The reversal of 1158422 is 2248511.

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

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1158427) 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, 863 + ... + 1749.

It is an arithmetic number, because the mean of its divisors is an integer number (217782).

2^1158422 is an apocalyptic number.

1158422 is a deficient number, since it is larger than the sum of its proper divisors (583834).

1158422 is an equidigital number, since it uses as much as digits as its factorization.

1158422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1542.

The product of its digits is 640, while the sum is 23.

The square root of 1158422 is about 1076.3001440119. The cubic root of 1158422 is about 105.0240912219.

The spelling of 1158422 in words is "one million, one hundred fifty-eight thousand, four hundred twenty-two".