1111425 has 48 divisors (see below), whose sum is σ = 2202240. Its totient is φ = 483840.

The previous prime is 1111423. The next prime is 1111427. The reversal of 1111425 is 5241111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1111423) and next prime (1111427).

It is not a de Polignac number, because 1111425 - 2¹ = 1111423 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (1111423) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15189 + ... + 15261.

It is an arithmetic number, because the mean of its divisors is an integer number (45880).

2^1111425 is an apocalyptic number.

1111425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1111425 is the 609-th octagonal number.

It is an amenable number.

1111425 is a deficient number, since it is larger than the sum of its proper divisors (1090815).

1111425 is a wasteful number, since it uses less digits than its factorization.

1111425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122 (or 117 counting only the distinct ones).

The product of its digits is 40, while the sum is 15.

The square root of 1111425 is about 1054.2414334487. The cubic root of 1111425 is about 103.5841692044.

Adding to 1111425 its reverse (5241111), we get a palindrome (6352536).

The spelling of 1111425 in words is "one million, one hundred eleven thousand, four hundred twenty-five".