1011427 has 4 divisors (see below), whose sum is σ = 1064680. Its totient is φ = 958176.

The previous prime is 1011407. The next prime is 1011431. The reversal of 1011427 is 7241101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7241101 = 7 ⋅1034443.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1011427 is a prime.

It is a Duffinian number.

1011427 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1011427.

It is not an unprimeable number, because it can be changed into a prime (1011407) 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, 26598 + ... + 26635.

It is an arithmetic number, because the mean of its divisors is an integer number (266170).

2^1011427 is an apocalyptic number.

1011427 is a deficient number, since it is larger than the sum of its proper divisors (53253).

1011427 is an equidigital number, since it uses as much as digits as its factorization.

1011427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53252.

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 1011427 is about 1005.6972705541. The cubic root of 1011427 is about 100.3794582928.

Adding to 1011427 its reverse (7241101), we get a palindrome (8252528).

The spelling of 1011427 in words is "one million, eleven thousand, four hundred twenty-seven".