1392249 has 8 divisors (see below), whose sum is σ = 1965600. Its totient is φ = 873536.

The previous prime is 1392233. The next prime is 1392253. The reversal of 1392249 is 9422931.

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

It is a cyclic number.

It is not a de Polignac number, because 1392249 - 2⁴ = 1392233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1392229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13599 + ... + 13700.

It is an arithmetic number, because the mean of its divisors is an integer number (245700).

2^1392249 is an apocalyptic number.

It is an amenable number.

1392249 is a deficient number, since it is larger than the sum of its proper divisors (573351).

1392249 is a wasteful number, since it uses less digits than its factorization.

1392249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27319.

The product of its digits is 3888, while the sum is 30.

The square root of 1392249 is about 1179.9360152144. The cubic root of 1392249 is about 111.6620606501.

The spelling of 1392249 in words is "one million, three hundred ninety-two thousand, two hundred forty-nine".