1242199 has 12 divisors (see below), whose sum is σ = 1465128. Its totient is φ = 1050000.

The previous prime is 1242193. The next prime is 1242217. The reversal of 1242199 is 9912421.

1242199 = 57² + 58² + ... + 157².

It is a happy number.

It is not a de Polignac number, because 1242199 - 2³ = 1242191 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4824 + ... + 5074.

It is an arithmetic number, because the mean of its divisors is an integer number (122094).

2^1242199 is an apocalyptic number.

1242199 is a deficient number, since it is larger than the sum of its proper divisors (222929).

1242199 is a wasteful number, since it uses less digits than its factorization.

1242199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366 (or 359 counting only the distinct ones).

The product of its digits is 1296, while the sum is 28.

The square root of 1242199 is about 1114.5398153498. The cubic root of 1242199 is about 107.4971767782.

It can be divided in two parts, 1242 and 199, that added together give a palindrome (1441).

The spelling of 1242199 in words is "one million, two hundred forty-two thousand, one hundred ninety-nine".